npm package: @stdlib/assert
Description: Standard assertion utilities.
Author: The Stdlib Authors
Latest version: 0.3.3

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<details>
  <summary>
    About stdlib...
  </summary>
  <p>We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.</p>
  <p>The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.</p>
  <p>When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.</p>
  <p>To join us in bringing numerical computing to the web, get started by checking us out on <a href="https://github.com/stdlib-js/stdlib">GitHub</a>, and please consider <a href="https://opencollective.com/stdlib">financially supporting stdlib</a>. We greatly appreciate your continued support!</p>
</details>

# Assert

[![NPM version][npm-image]][npm-url] [![Build Status][test-image]][test-url] [![Coverage Status][coverage-image]][coverage-url] <!-- [![dependencies][dependencies-image]][dependencies-url] -->

> Assertion utilities.

<section class="installation">

## Installation

```bash
npm install @stdlib/assert
```

</section>

<section class="usage">

## Usage

```javascript
var assert = require( '@stdlib/assert' );
```

#### assert

Namespace providing utilities for data type testing and feature detection.

```javascript
var o = assert;
// returns {...}
```

To validate the built-in JavaScript data types, the namespace includes the following assertion utilities:

<!-- <toc pattern="is-+(array|boolean|date-object|function|string|symbol|nan|null|number|object|regexp|symbol|undefined)" > -->

<div class="namespace-toc">

-   <span class="signature">[`isArray( value )`][@stdlib/assert/is-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array.</span>
-   <span class="signature">[`isBoolean( value )`][@stdlib/assert/is-boolean]</span><span class="delimiter">: </span><span class="description">test if a value is a boolean.</span>
-   <span class="signature">[`isDateObject( value )`][@stdlib/assert/is-date-object]</span><span class="delimiter">: </span><span class="description">test if a value is a Date object.</span>
-   <span class="signature">[`isFunction( value )`][@stdlib/assert/is-function]</span><span class="delimiter">: </span><span class="description">test if a value is a function.</span>
-   <span class="signature">[`isnan( value )`][@stdlib/assert/is-nan]</span><span class="delimiter">: </span><span class="description">test if a value is NaN.</span>
-   <span class="signature">[`isNull( value )`][@stdlib/assert/is-null]</span><span class="delimiter">: </span><span class="description">test if a value is null.</span>
-   <span class="signature">[`isNumber( value )`][@stdlib/assert/is-number]</span><span class="delimiter">: </span><span class="description">test if a value is a number.</span>
-   <span class="signature">[`isObject( value )`][@stdlib/assert/is-object]</span><span class="delimiter">: </span><span class="description">test if a value is an object.</span>
-   <span class="signature">[`isRegExp( value )`][@stdlib/assert/is-regexp]</span><span class="delimiter">: </span><span class="description">test if a value is a regular expression.</span>
-   <span class="signature">[`isString( value )`][@stdlib/assert/is-string]</span><span class="delimiter">: </span><span class="description">test if a value is a string.</span>
-   <span class="signature">[`isSymbol( value )`][@stdlib/assert/is-symbol]</span><span class="delimiter">: </span><span class="description">test if a value is a symbol.</span>
-   <span class="signature">[`isUndefined( value )`][@stdlib/assert/is-undefined]</span><span class="delimiter">: </span><span class="description">test if a value is undefined.</span>

</div>

<!-- </toc> -->

For primitive types having corresponding object wrappers, assertion utilities provide `isObject` and `isPrimitive` methods to test for either objects or primitives, respectively.

<!-- eslint-disable no-new-wrappers -->

```javascript
var Boolean = require( '@stdlib/boolean/ctor' );
var isBoolean = require( '@stdlib/assert/is-boolean' );

var bool = isBoolean.isObject( new Boolean( false ) );
// returns true

bool = isBoolean.isObject( false );
// returns false

bool = isBoolean.isPrimitive( false );
// returns true
```

Many of the assertion utilities have corresponding packages that test whether array elements are of the given data type:

<!-- <toc pattern="is-+(array|boolean|date-object|function|string|nan|number|object|regexp|symbol|null|undefined)-array" > -->

<div class="namespace-toc">

-   <span class="signature">[`isArrayArray( value )`][@stdlib/assert/is-array-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array of arrays.</span>
-   <span class="signature">[`isBooleanArray( value )`][@stdlib/assert/is-boolean-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object of booleans.</span>
-   <span class="signature">[`isDateObjectArray( value )`][@stdlib/assert/is-date-object-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only Date objects.</span>
-   <span class="signature">[`isFunctionArray( value )`][@stdlib/assert/is-function-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only functions.</span>
-   <span class="signature">[`isNaNArray( value )`][@stdlib/assert/is-nan-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only NaN values.</span>
-   <span class="signature">[`isNullArray( value )`][@stdlib/assert/is-null-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only null values.</span>
-   <span class="signature">[`isNumberArray( value )`][@stdlib/assert/is-number-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object of numbers.</span>
-   <span class="signature">[`isObjectArray( value )`][@stdlib/assert/is-object-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only objects.</span>
-   <span class="signature">[`isStringArray( value )`][@stdlib/assert/is-string-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array of strings.</span>
-   <span class="signature">[`isSymbolArray( value )`][@stdlib/assert/is-symbol-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only symbols.</span>

</div>

<!-- </toc> -->

Where applicable, similar to the assertion utilities for built-in data types, array assertion utilities provides methods for testing for an array of primitives or objects.

<!-- eslint-disable no-new-wrappers -->

```javascript
var isStringArray = require( '@stdlib/assert/is-string-array' );

var bool = isStringArray( [ 'hello', 'world' ] );
// returns true

bool = isStringArray.primitives( [ 'hello', 'world' ] );
// returns true

bool = isStringArray.objects( [ 'hello', 'world' ] );
// returns false

bool = isStringArray.objects( [ new String( 'hello' ), new String( 'world' ) ] );
// returns true
```

The namespace also contains utilities to test for numbers within a certain range or for numbers satisfying a particular "type":

<!-- <toc pattern="is-*+(number|integer)*" ignore="is-number-array" ignore="is-number" > -->

<div class="namespace-toc">

-   <span class="signature">[`isCubeNumber( value )`][@stdlib/assert/is-cube-number]</span><span class="delimiter">: </span><span class="description">test if a value is a cube number.</span>
-   <span class="signature">[`isIntegerArray( value )`][@stdlib/assert/is-integer-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only integers.</span>
-   <span class="signature">[`isInteger( value )`][@stdlib/assert/is-integer]</span><span class="delimiter">: </span><span class="description">test if a value is a number having an integer value.</span>
-   <span class="signature">[`isNegativeIntegerArray( value )`][@stdlib/assert/is-negative-integer-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only negative integers.</span>
-   <span class="signature">[`isNegativeInteger( value )`][@stdlib/assert/is-negative-integer]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a negative integer value.</span>
-   <span class="signature">[`isNegativeNumberArray( value )`][@stdlib/assert/is-negative-number-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only negative numbers.</span>
-   <span class="signature">[`isNegativeNumber( value )`][@stdlib/assert/is-negative-number]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a negative value.</span>
-   <span class="signature">[`isNonNegativeIntegerArray( value )`][@stdlib/assert/is-nonnegative-integer-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only nonnegative integers.</span>
-   <span class="signature">[`isNonNegativeInteger( value )`][@stdlib/assert/is-nonnegative-integer]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a nonnegative integer value.</span>
-   <span class="signature">[`isNonNegativeNumberArray( value )`][@stdlib/assert/is-nonnegative-number-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only nonnegative numbers.</span>
-   <span class="signature">[`isNonNegativeNumber( value )`][@stdlib/assert/is-nonnegative-number]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a nonnegative value.</span>
-   <span class="signature">[`isNonPositiveIntegerArray( value )`][@stdlib/assert/is-nonpositive-integer-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only nonpositive integers.</span>
-   <span class="signature">[`isNonPositiveInteger( value )`][@stdlib/assert/is-nonpositive-integer]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a nonpositive integer value.</span>
-   <span class="signature">[`isNonPositiveNumberArray( value )`][@stdlib/assert/is-nonpositive-number-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only nonpositive numbers.</span>
-   <span class="signature">[`isNonPositiveNumber( value )`][@stdlib/assert/is-nonpositive-number]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a nonpositive value.</span>
-   <span class="signature">[`isPositiveIntegerArray( value )`][@stdlib/assert/is-positive-integer-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only positive integers.</span>
-   <span class="signature">[`isPositiveInteger( value )`][@stdlib/assert/is-positive-integer]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a positive integer value.</span>
-   <span class="signature">[`isPositiveNumberArray( value )`][@stdlib/assert/is-positive-number-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only positive numbers.</span>
-   <span class="signature">[`isPositiveNumber( value )`][@stdlib/assert/is-positive-number]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a positive value.</span>
-   <span class="signature">[`isSafeIntegerArray( value )`][@stdlib/assert/is-safe-integer-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only safe integers.</span>
-   <span class="signature">[`isSafeInteger( value )`][@stdlib/assert/is-safe-integer]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a safe integer value.</span>
-   <span class="signature">[`isSquareNumber( value )`][@stdlib/assert/is-square-number]</span><span class="delimiter">: </span><span class="description">test if a value is a square number.</span>
-   <span class="signature">[`isSquareTriangularNumber( value )`][@stdlib/assert/is-square-triangular-number]</span><span class="delimiter">: </span><span class="description">test if a value is a square triangular number.</span>
-   <span class="signature">[`isTriangularNumber( value )`][@stdlib/assert/is-triangular-number]</span><span class="delimiter">: </span><span class="description">test if a value is a triangular number.</span>

</div>

<!-- </toc> -->

The namespace provides utilities for validating typed arrays:

<!-- <toc pattern="is-+(int8|int16|int32|uint8clamped|uint8|uint16|uint32|float32|float64)array"> -->

<div class="namespace-toc">

-   <span class="signature">[`isFloat32Array( value )`][@stdlib/assert/is-float32array]</span><span class="delimiter">: </span><span class="description">test if a value is a Float32Array.</span>
-   <span class="signature">[`isFloat64Array( value )`][@stdlib/assert/is-float64array]</span><span class="delimiter">: </span><span class="description">test if a value is a Float64Array.</span>
-   <span class="signature">[`isInt16Array( value )`][@stdlib/assert/is-int16array]</span><span class="delimiter">: </span><span class="description">test if a value is an Int16Array.</span>
-   <span class="signature">[`isInt32Array( value )`][@stdlib/assert/is-int32array]</span><span class="delimiter">: </span><span class="description">test if a value is an Int32Array.</span>
-   <span class="signature">[`isInt8Array( value )`][@stdlib/assert/is-int8array]</span><span class="delimiter">: </span><span class="description">test if a value is an Int8Array.</span>
-   <span class="signature">[`isUint16Array( value )`][@stdlib/assert/is-uint16array]</span><span class="delimiter">: </span><span class="description">test if a value is a Uint16Array.</span>
-   <span class="signature">[`isUint32Array( value )`][@stdlib/assert/is-uint32array]</span><span class="delimiter">: </span><span class="description">test if a value is a Uint32Array.</span>
-   <span class="signature">[`isUint8Array( value )`][@stdlib/assert/is-uint8array]</span><span class="delimiter">: </span><span class="description">test if a value is a Uint8Array.</span>
-   <span class="signature">[`isUint8ClampedArray( value )`][@stdlib/assert/is-uint8clampedarray]</span><span class="delimiter">: </span><span class="description">test if a value is a Uint8ClampedArray.</span>

</div>

<!-- </toc> -->

The namespace includes utilities for validating `ndarray`s (n-dimensional arrays).

<!-- <toc keywords="+ndarray" > -->

<div class="namespace-toc">

-   <span class="signature">[`isCentrosymmetricMatrix( value )`][@stdlib/assert/is-centrosymmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a centrosymmetric matrix.</span>
-   <span class="signature">[`isComplex128MatrixLike( value )`][@stdlib/assert/is-complex128matrix-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 2-dimensional ndarray-like object containing double-precision complex floating-point numbers.</span>
-   <span class="signature">[`isComplex128ndarrayLike( value )`][@stdlib/assert/is-complex128ndarray-like]</span><span class="delimiter">: </span><span class="description">test if a value is an ndarray-like object containing double-precision complex floating-point numbers.</span>
-   <span class="signature">[`isComplex128VectorLike( value )`][@stdlib/assert/is-complex128vector-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 1-dimensional ndarray-like object containing double-precision complex floating-point numbers.</span>
-   <span class="signature">[`isComplex64MatrixLike( value )`][@stdlib/assert/is-complex64matrix-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 2-dimensional ndarray-like object containing single-precision complex floating-point numbers.</span>
-   <span class="signature">[`isComplex64ndarrayLike( value )`][@stdlib/assert/is-complex64ndarray-like]</span><span class="delimiter">: </span><span class="description">test if a value is an ndarray-like object containing single-precision complex floating-point numbers.</span>
-   <span class="signature">[`isComplex64VectorLike( value )`][@stdlib/assert/is-complex64vector-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 1-dimensional ndarray-like object containing single-precision complex floating-point numbers.</span>
-   <span class="signature">[`isFloat32MatrixLike( value )`][@stdlib/assert/is-float32matrix-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 2-dimensional ndarray-like object containing single-precision floating-point numbers.</span>
-   <span class="signature">[`isFloat32ndarrayLike( value )`][@stdlib/assert/is-float32ndarray-like]</span><span class="delimiter">: </span><span class="description">test if a value is an ndarray-like object containing single-precision floating-point numbers.</span>
-   <span class="signature">[`isFloat32VectorLike( value )`][@stdlib/assert/is-float32vector-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 1-dimensional ndarray-like object containing single-precision floating-point numbers.</span>
-   <span class="signature">[`isFloat64MatrixLike( value )`][@stdlib/assert/is-float64matrix-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 2-dimensional ndarray-like object containing double-precision floating-point numbers.</span>
-   <span class="signature">[`isFloat64ndarrayLike( value )`][@stdlib/assert/is-float64ndarray-like]</span><span class="delimiter">: </span><span class="description">test if a value is an ndarray-like object containing double-precision floating-point numbers.</span>
-   <span class="signature">[`isFloat64VectorLike( value )`][@stdlib/assert/is-float64vector-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 1-dimensional ndarray-like object containing double-precision floating-point numbers.</span>
-   <span class="signature">[`isMatrixLike( value )`][@stdlib/assert/is-matrix-like]</span><span class="delimiter">: </span><span class="description">test if a value is 2-dimensional ndarray-like object.</span>
-   <span class="signature">[`isndarrayLike( value )`][@stdlib/assert/is-ndarray-like]</span><span class="delimiter">: </span><span class="description">test if a value is ndarray-like.</span>
-   <span class="signature">[`isNonSymmetricMatrix( value )`][@stdlib/assert/is-nonsymmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a non-symmetric matrix.</span>
-   <span class="signature">[`isPersymmetricMatrix( value )`][@stdlib/assert/is-persymmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a persymmetric matrix.</span>
-   <span class="signature">[`isSkewCentrosymmetricMatrix( value )`][@stdlib/assert/is-skew-centrosymmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a skew-centrosymmetric matrix.</span>
-   <span class="signature">[`isSkewPersymmetricMatrix( value )`][@stdlib/assert/is-skew-persymmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a skew-persymmetric matrix.</span>
-   <span class="signature">[`isSkewSymmetricMatrix( value )`][@stdlib/assert/is-skew-symmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a skew-symmetric matrix.</span>
-   <span class="signature">[`isSquareMatrix( value )`][@stdlib/assert/is-square-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a 2-dimensional ndarray-like object having equal dimensions.</span>
-   <span class="signature">[`isSymmetricMatrix( value )`][@stdlib/assert/is-symmetric-matrix]</span><span class="delimiter">: </span><span class="description">test if a value is a symmetric matrix.</span>
-   <span class="signature">[`isVectorLike( value )`][@stdlib/assert/is-vector-like]</span><span class="delimiter">: </span><span class="description">test if a value is a 1-dimensional ndarray-like object.</span>

</div>

<!-- </toc> -->

The namespace includes utilities for validating complex numbers and arrays of complex numbers:

<!-- <toc pattern="is-complex*" > -->

<div class="namespace-toc">

-   <span class="signature">[`isComplexLike( value )`][@stdlib/assert/is-complex-like]</span><span class="delimiter">: </span><span class="description">test if a value is a complex number-like object.</span>
-   <span class="signature">[`isComplexTypedArrayLike( value )`][@stdlib/assert/is-complex-typed-array-like]</span><span class="delimiter">: </span><span class="description">test if a value is complex-typed-array-like.</span>
-   <span class="signature">[`isComplexTypedArray( value )`][@stdlib/assert/is-complex-typed-array]</span><span class="delimiter">: </span><span class="description">test if a value is a complex typed array.</span>
-   <span class="signature">[`isComplex( value )`][@stdlib/assert/is-complex]</span><span class="delimiter">: </span><span class="description">test if a value is a 64-bit or 128-bit complex number.</span>
-   <span class="signature">[`isComplex128( value )`][@stdlib/assert/is-complex128]</span><span class="delimiter">: </span><span class="description">test if a value is a 128-bit complex number.</span>
-   <span class="signature">[`isComplex128Array( value )`][@stdlib/assert/is-complex128array]</span><span class="delimiter">: </span><span class="description">test if a value is a Complex128Array.</span>
-   <span class="signature">[`isComplex64( value )`][@stdlib/assert/is-complex64]</span><span class="delimiter">: </span><span class="description">test if a value is a 64-bit complex number.</span>
-   <span class="signature">[`isComplex64Array( value )`][@stdlib/assert/is-complex64array]</span><span class="delimiter">: </span><span class="description">test if a value is a Complex64Array.</span>

</div>

<!-- </toc> -->

The namespace includes utilities for validating other special arrays or buffers:

<!-- <toc pattern="is-*array*" ignore="is-+(int8|int16|int32|uint8clamped|uint8|uint16|uint32|float32|float64)array" ignore="is-*+(number|integer)*" ignore="is-+(array|boolean|date-object|function|string|nan|number|object|primitive|regexp|symbol|null|undefined)-array" ignore="is-array" keywords="-ndarray" > -->

<div class="namespace-toc">

-   <span class="signature">[`isAccessorArray( value )`][@stdlib/assert/is-accessor-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object supporting the accessor (get/set) protocol.</span>
-   <span class="signature">[`isArrayLength( value )`][@stdlib/assert/is-array-length]</span><span class="delimiter">: </span><span class="description">test if a value is a valid array length.</span>
-   <span class="signature">[`isArrayLikeObject( value )`][@stdlib/assert/is-array-like-object]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object.</span>
-   <span class="signature">[`isArrayLike( value )`][@stdlib/assert/is-array-like]</span><span class="delimiter">: </span><span class="description">test if a value is array-like.</span>
-   <span class="signature">[`isArrayBufferView( value )`][@stdlib/assert/is-arraybuffer-view]</span><span class="delimiter">: </span><span class="description">test if a value is an ArrayBuffer view.</span>
-   <span class="signature">[`isArrayBuffer( value )`][@stdlib/assert/is-arraybuffer]</span><span class="delimiter">: </span><span class="description">test if a value is an ArrayBuffer.</span>
-   <span class="signature">[`isBetweenArray( value, a, b[, left, right] )`][@stdlib/assert/is-between-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object where every element is between two values.</span>
-   <span class="signature">[`isBigInt64Array( value )`][@stdlib/assert/is-bigint64array]</span><span class="delimiter">: </span><span class="description">test if a value is a BigInt64Array.</span>
-   <span class="signature">[`isBigUint64Array( value )`][@stdlib/assert/is-biguint64array]</span><span class="delimiter">: </span><span class="description">test if a value is a BigUint64Array.</span>
-   <span class="signature">[`isCircularArray( value )`][@stdlib/assert/is-circular-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array containing a circular reference.</span>
-   <span class="signature">[`isEmptyArrayLikeObject( value )`][@stdlib/assert/is-empty-array-like-object]</span><span class="delimiter">: </span><span class="description">test if a value is an empty array-like object.</span>
-   <span class="signature">[`isEmptyArray( value )`][@stdlib/assert/is-empty-array]</span><span class="delimiter">: </span><span class="description">test if a value is an empty array.</span>
-   <span class="signature">[`isFalsyArray( value )`][@stdlib/assert/is-falsy-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only falsy values.</span>
-   <span class="signature">[`isFiniteArray( value )`][@stdlib/assert/is-finite-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only finite numbers.</span>
-   <span class="signature">[`isNumericArray( value )`][@stdlib/assert/is-numeric-array]</span><span class="delimiter">: </span><span class="description">test if a value is a numeric array.</span>
-   <span class="signature">[`isPlainObjectArray( value )`][@stdlib/assert/is-plain-object-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only plain objects.</span>
-   <span class="signature">[`isProbabilityArray( value )`][@stdlib/assert/is-probability-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only probabilities.</span>
-   <span class="signature">[`isSameArray( v1, v2 )`][@stdlib/assert/is-same-array]</span><span class="delimiter">: </span><span class="description">test if two arguments are both generic arrays and have the same values.</span>
-   <span class="signature">[`isSameComplex128Array( v1, v2 )`][@stdlib/assert/is-same-complex128array]</span><span class="delimiter">: </span><span class="description">test if two arguments are both Complex128Arrays and have the same values.</span>
-   <span class="signature">[`isSameComplex64Array( v1, v2 )`][@stdlib/assert/is-same-complex64array]</span><span class="delimiter">: </span><span class="description">test if two arguments are both Complex64Arrays and have the same values.</span>
-   <span class="signature">[`isSameFloat32Array( v1, v2 )`][@stdlib/assert/is-same-float32array]</span><span class="delimiter">: </span><span class="description">test if two arguments are both Float32Arrays and have the same values.</span>
-   <span class="signature">[`isSameFloat64Array( v1, v2 )`][@stdlib/assert/is-same-float64array]</span><span class="delimiter">: </span><span class="description">test if two arguments are both Float64Arrays and have the same values.</span>
-   <span class="signature">[`isSharedArrayBuffer( value )`][@stdlib/assert/is-sharedarraybuffer]</span><span class="delimiter">: </span><span class="description">test if a value is a SharedArrayBuffer.</span>
-   <span class="signature">[`isTruthyArray( value )`][@stdlib/assert/is-truthy-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array-like object containing only truthy values.</span>
-   <span class="signature">[`isTypedArrayLength( value )`][@stdlib/assert/is-typed-array-length]</span><span class="delimiter">: </span><span class="description">test if a value is a valid typed array length.</span>
-   <span class="signature">[`isTypedArrayLike( value )`][@stdlib/assert/is-typed-array-like]</span><span class="delimiter">: </span><span class="description">test if a value is typed-array-like.</span>
-   <span class="signature">[`isTypedArray( value )`][@stdlib/assert/is-typed-array]</span><span class="delimiter">: </span><span class="description">test if a value is a typed array.</span>
-   <span class="signature">[`isUnityProbabilityArray( value )`][@stdlib/assert/is-unity-probability-array]</span><span class="delimiter">: </span><span class="description">test if a value is an array of probabilities that sum to one.</span>

</div>

<!-- </toc> -->

To test for error objects, the namespace includes the following utilities:

<!-- <toc pattern="is-*error*" > -->

<div class="namespace-toc">

-   <span class="signature">[`isError( value )`][@stdlib/assert/is-error]</span><span class="delimiter">: </span><span class="description">test if a value is an Error object.</span>
-   <span class="signature">[`isEvalError( value )`][@stdlib/assert/is-eval-error]</span><span class="delimiter">: </span><span class="description">test if a value is an EvalError object.</span>
-   <span class="signature">[`isRangeError( value )`][@stdlib/assert/is-range-error]</span><span class="delimiter">: </span><span class="description">test if a value is a RangeError object.</span>
-   <span class="signature">[`isReferenceError( value )`][@stdlib/assert/is-reference-error]</span><span class="delimiter">: </span><span class="description">test if a value is a ReferenceError object.</span>
-   <span class="signature">[`isSyntaxError( value )`][@stdlib/assert/is-syntax-error]</span><span class="delimiter">: </span><span class="description">test if a value is a SyntaxError object.</span>
-   <span class="signature">[`isTypeError( value )`][@stdlib/assert/is-type-error]</span><span class="delimiter">: </span><span class="description">test if a value is a TypeError object.</span>
-   <span class="signature">[`isURIError( value )`][@stdlib/assert/is-uri-error]</span><span class="delimiter">: </span><span class="description">test if a value is a URIError object.</span>

</div>

<!-- </toc> -->

The namespace exposes the following constants concerning the current running process:

<!-- <toc pattern="is-+(browser|darwin|electron|electron-main|electron-renderer|little-endian|big-endian|node|web-worker|windows|docker|mobile|touch-device)" > -->

<div class="namespace-toc">

-   <span class="signature">[`IS_BIG_ENDIAN`][@stdlib/assert/is-big-endian]</span><span class="delimiter">: </span><span class="description">check if an environment is big endian.</span>
-   <span class="signature">[`IS_BROWSER`][@stdlib/assert/is-browser]</span><span class="delimiter">: </span><span class="description">check if the runtime is a web browser.</span>
-   <span class="signature">[`IS_DARWIN`][@stdlib/assert/is-darwin]</span><span class="delimiter">: </span><span class="description">boolean indicating if the current process is running on Darwin.</span>
-   <span class="signature">[`IS_DOCKER`][@stdlib/assert/is-docker]</span><span class="delimiter">: </span><span class="description">check if the process is running in a Docker container.</span>
-   <span class="signature">[`IS_ELECTRON_MAIN`][@stdlib/assert/is-electron-main]</span><span class="delimiter">: </span><span class="description">check if the runtime is the main Electron process.</span>
-   <span class="signature">[`IS_ELECTRON_RENDERER`][@stdlib/assert/is-electron-renderer]</span><span class="delimiter">: </span><span class="description">check if the runtime is the Electron renderer process.</span>
-   <span class="signature">[`IS_ELECTRON`][@stdlib/assert/is-electron]</span><span class="delimiter">: </span><span class="description">check if the runtime is Electron.</span>
-   <span class="signature">[`IS_LITTLE_ENDIAN`][@stdlib/assert/is-little-endian]</span><span class="delimiter">: </span><span class="description">check if an environment is little endian.</span>
-   <span class="signature">[`IS_MOBILE`][@stdlib/assert/is-mobile]</span><span class="delimiter">: </span><span class="description">check if the current environment is a mobile device.</span>
-   <span class="signature">[`IS_NODE`][@stdlib/assert/is-node]</span><span class="delimiter">: </span><span class="description">check if the runtime is Node.js.</span>
-   <span class="signature">[`IS_TOUCH_DEVICE`][@stdlib/assert/is-touch-device]</span><span class="delimiter">: </span><span class="description">check if the current environment is a touch device.</span>
-   <span class="signature">[`IS_WEB_WORKER`][@stdlib/assert/is-web-worker]</span><span class="delimiter">: </span><span class="description">check if the runtime is a web worker.</span>
-   <span class="signature">[`IS_WINDOWS`][@stdlib/assert/is-windows]</span><span class="delimiter">: </span><span class="description">boolean indicating if the current process is running on Windows.</span>

</div>

<!-- </toc> -->

To test whether a runtime environment supports certain features, the namespace includes the following utilities:

<!-- <toc pattern="has-*-support" > -->

<div class="namespace-toc">

-   <span class="signature">[`hasArrayBufferSupport()`][@stdlib/assert/has-arraybuffer-support]</span><span class="delimiter">: </span><span class="description">detect native `ArrayBuffer` support.</span>
-   <span class="signature">[`hasArrowFunctionSupport()`][@stdlib/assert/has-arrow-function-support]</span><span class="delimiter">: </span><span class="description">detect native `arrow function` support.</span>
-   <span class="signature">[`hasAsyncAwaitSupport()`][@stdlib/assert/has-async-await-support]</span><span class="delimiter">: </span><span class="description">detect native `async`/`await` support.</span>
-   <span class="signature">[`hasAsyncIteratorSymbolSupport()`][@stdlib/assert/has-async-iterator-symbol-support]</span><span class="delimiter">: </span><span class="description">detect native `Symbol.asyncIterator` support.</span>
-   <span class="signature">[`hasBigIntSupport()`][@stdlib/assert/has-bigint-support]</span><span class="delimiter">: </span><span class="description">detect native `BigInt` support.</span>
-   <span class="signature">[`hasBigInt64ArraySupport()`][@stdlib/assert/has-bigint64array-support]</span><span class="delimiter">: </span><span class="description">detect native `BigInt64Array` support.</span>
-   <span class="signature">[`hasBigUint64ArraySupport()`][@stdlib/assert/has-biguint64array-support]</span><span class="delimiter">: </span><span class="description">detect native `BigUint64Array` support.</span>
-   <span class="signature">[`hasClassSupport()`][@stdlib/assert/has-class-support]</span><span class="delimiter">: </span><span class="description">detect native `class` support.</span>
-   <span class="signature">[`hasDataViewSupport()`][@stdlib/assert/has-dataview-support]</span><span class="delimiter">: </span><span class="description">detect native `DataView` support.</span>
-   <span class="signature">[`hasDefinePropertiesSupport()`][@stdlib/assert/has-define-properties-support]</span><span class="delimiter">: </span><span class="description">detect `Object.defineProperties` support.</span>
-   <span class="signature">[`hasDefinePropertySupport()`][@stdlib/assert/has-define-property-support]</span><span class="delimiter">: </span><span class="description">detect `Object.defineProperty` support.</span>
-   <span class="signature">[`hasFloat32ArraySupport()`][@stdlib/assert/has-float32array-support]</span><span class="delimiter">: </span><span class="description">detect native `Float32Array` support.</span>
-   <span class="signature">[`hasFloat64ArraySupport()`][@stdlib/assert/has-float64array-support]</span><span class="delimiter">: </span><span class="description">detect native `Float64Array` support.</span>
-   <span class="signature">[`hasFunctionNameSupport()`][@stdlib/assert/has-function-name-support]</span><span class="delimiter">: </span><span class="description">detect native function `name` support.</span>
-   <span class="signature">[`hasGeneratorSupport()`][@stdlib/assert/has-generator-support]</span><span class="delimiter">: </span><span class="description">detect native `generator function` support.</span>
-   <span class="signature">[`hasGlobalThisSupport()`][@stdlib/assert/has-globalthis-support]</span><span class="delimiter">: </span><span class="description">detect `globalThis` support.</span>
-   <span class="signature">[`hasInt16ArraySupport()`][@stdlib/assert/has-int16array-support]</span><span class="delimiter">: </span><span class="description">detect native `Int16Array` support.</span>
-   <span class="signature">[`hasInt32ArraySupport()`][@stdlib/assert/has-int32array-support]</span><span class="delimiter">: </span><span class="description">detect native `Int32Array` support.</span>
-   <span class="signature">[`hasInt8ArraySupport()`][@stdlib/assert/has-int8array-support]</span><span class="delimiter">: </span><span class="description">detect native `Int8Array` support.</span>
-   <span class="signature">[`hasIteratorSymbolSupport()`][@stdlib/assert/has-iterator-symbol-support]</span><span class="delimiter">: </span><span class="description">detect native `Symbol.iterator` support.</span>
-   <span class="signature">[`hasMapSupport()`][@stdlib/assert/has-map-support]</span><span class="delimiter">: </span><span class="description">detect native `Map` support.</span>
-   <span class="signature">[`hasNodeBufferSupport()`][@stdlib/assert/has-node-buffer-support]</span><span class="delimiter">: </span><span class="description">detect native `Buffer` support.</span>
-   <span class="signature">[`hasProxySupport()`][@stdlib/assert/has-proxy-support]</span><span class="delimiter">: </span><span class="description">detect native `Proxy` support.</span>
-   <span class="signature">[`hasSetSupport()`][@stdlib/assert/has-set-support]</span><span class="delimiter">: </span><span class="description">detect native `Set` support.</span>
-   <span class="signature">[`hasSharedArrayBufferSupport()`][@stdlib/assert/has-sharedarraybuffer-support]</span><span class="delimiter">: </span><span class="description">detect native `SharedArrayBuffer` support.</span>
-   <span class="signature">[`hasSymbolSupport()`][@stdlib/assert/has-symbol-support]</span><span class="delimiter">: </span><span class="description">detect native `Symbol` support.</span>
-   <span class="signature">[`hasToStringTagSupport()`][@stdlib/assert/has-tostringtag-support]</span><span class="delimiter">: </span><span class="description">detect native `Symbol.toStringTag` support.</span>
-   <span class="signature">[`hasUint16ArraySupport()`][@stdlib/assert/has-uint16array-support]</span><span class="delimiter">: </span><span class="description">detect native `Uint16Array` support.</span>
-   <span class="signature">[`hasUint32ArraySupport()`][@stdlib/assert/has-uint32array-support]</span><span class="delimiter">: </span><span class="description">detect native `Uint32Array` support.</span>
-   <span class="signature">[`hasUint8ArraySupport()`][@stdlib/assert/has-uint8array-support]</span><span class="delimiter">: </span><span class="description">detect native `Uint8Array` support.</span>
-   <span class="signature">[`hasUint8ClampedArraySupport()`][@stdlib/assert/has-uint8clampedarray-support]</span><span class="delimiter">: </span><span class="description">detect native `Uint8ClampedArray` support.</span>
-   <span class="signature">[`hasWebAssemblySupport()`][@stdlib/assert/has-wasm-support]</span><span class="delimiter">: </span><span class="description">detect native WebAssembly support.</span>
-   <span class="signature">[`hasWeakMapSupport()`][@stdlib/assert/has-weakmap-support]</span><span class="delimiter">: </span><span class="description">detect native `WeakMap` support.</span>
-   <span class="signature">[`hasWeakSetSupport()`][@stdlib/assert/has-weakset-support]</span><span class="delimiter">: </span><span class="description">detect native `WeakSet` support.</span>

</div>

<!-- </toc> -->

The remaining namespace utilities are as follows:

<!-- <toc ignore="is-+(array|boolean|date-object|function|string|symbol|nan|null|number|object|regexp|symbol|undefined)" ignore="is-*+(number|integer)*" ignore="is-*array*" ignore="is-*error*" ignore="is-+(browser|darwin|electron|electron-main|electron-renderer|little-endian|node|web-worker|windows)" ignore="has-*-support" keywords="-ndarray" > -->

<div class="namespace-toc">

-   <span class="signature">[`contains( val, searchValue[, position] )`][@stdlib/assert/contains]</span><span class="delimiter">: </span><span class="description">test if an array-like value contains a search value.</span>
-   <span class="signature">[`deepEqual( a, b )`][@stdlib/assert/deep-equal]</span><span class="delimiter">: </span><span class="description">test for deep equality between two values.</span>
-   <span class="signature">[`deepHasOwnProp( value, path[, options] )`][@stdlib/assert/deep-has-own-property]</span><span class="delimiter">: </span><span class="description">test whether an object contains a nested key path.</span>
-   <span class="signature">[`deepHasProp( value, path[, options] )`][@stdlib/assert/deep-has-property]</span><span class="delimiter">: </span><span class="description">test whether an object contains a nested key path, either own or inherited.</span>
-   <span class="signature">[`hasOwnProp( value, property )`][@stdlib/assert/has-own-property]</span><span class="delimiter">: </span><span class="description">test if an object has a specified property.</span>
-   <span class="signature">[`hasProp( value, property )`][@stdlib/assert/has-property]</span><span class="delimiter">: </span><span class="description">test if an object has a specified property, either own or inherited.</span>
-   <span class="signature">[`hasUTF16SurrogatePairAt( string, position )`][@stdlib/assert/has-utf16-surrogate-pair-at]</span><span class="delimiter">: </span><span class="description">test if a position in a string marks the start of a UTF-16 surrogate pair.</span>
-   <span class="signature">[`instanceOf( value, constructor )`][@stdlib/assert/instance-of]</span><span class="delimiter">: </span><span class="description">test whether a value has in its prototype chain a specified constructor as a prototype property.</span>
-   <span class="signature">[`isAbsoluteHttpURI( value )`][@stdlib/assert/is-absolute-http-uri]</span><span class="delimiter">: </span><span class="description">test whether a value is an absolute HTTP(S) URI.</span>
-   <span class="signature">[`isAbsolutePath( value )`][@stdlib/assert/is-absolute-path]</span><span class="delimiter">: </span><span class="description">test if a value is an absolute path.</span>
-   <span class="signature">[`isAbsoluteURI( value )`][@stdlib/assert/is-absolute-uri]</span><span class="delimiter">: </span><span class="description">test whether a value is an absolute URI.</span>
-   <span class="signature">[`isAccessorPropertyIn( value, property )`][@stdlib/assert/is-accessor-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property has an accessor descriptor.</span>
-   <span class="signature">[`isAccessorProperty( value, property )`][@stdlib/assert/is-accessor-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property has an accessor descriptor.</span>
-   <span class="signature">[`isAlphagram( value )`][@stdlib/assert/is-alphagram]</span><span class="delimiter">: </span><span class="description">test if a value is an alphagram.</span>
-   <span class="signature">[`isAlphaNumeric( value )`][@stdlib/assert/is-alphanumeric]</span><span class="delimiter">: </span><span class="description">test whether a string contains only alphanumeric characters.</span>
-   <span class="signature">[`isAnagram( str, value )`][@stdlib/assert/is-anagram]</span><span class="delimiter">: </span><span class="description">test if a value is an anagram.</span>
-   <span class="signature">[`isArguments( value )`][@stdlib/assert/is-arguments]</span><span class="delimiter">: </span><span class="description">test if a value is an arguments object.</span>
-   <span class="signature">[`isArrowFunction( value )`][@stdlib/assert/is-arrow-function]</span><span class="delimiter">: </span><span class="description">test if a value is an `arrow function`.</span>
-   <span class="signature">[`isASCII( value )`][@stdlib/assert/is-ascii]</span><span class="delimiter">: </span><span class="description">test whether a character belongs to the ASCII character set and whether this is true for all characters in a provided string.</span>
-   <span class="signature">[`isBetween( value, a, b[, left, right] )`][@stdlib/assert/is-between]</span><span class="delimiter">: </span><span class="description">test if a value is between two values.</span>
-   <span class="signature">[`isBigInt( value )`][@stdlib/assert/is-bigint]</span><span class="delimiter">: </span><span class="description">test if a value is a BigInt.</span>
-   <span class="signature">[`isBinaryString( value )`][@stdlib/assert/is-binary-string]</span><span class="delimiter">: </span><span class="description">test if a value is a binary string.</span>
-   <span class="signature">[`isBlankString( value )`][@stdlib/assert/is-blank-string]</span><span class="delimiter">: </span><span class="description">test if a value is a blank string.</span>
-   <span class="signature">[`isBoxedPrimitive( value )`][@stdlib/assert/is-boxed-primitive]</span><span class="delimiter">: </span><span class="description">test if a value is a JavaScript boxed primitive.</span>
-   <span class="signature">[`isBuffer( value )`][@stdlib/assert/is-buffer]</span><span class="delimiter">: </span><span class="description">test if a value is a Buffer object.</span>
-   <span class="signature">[`isCamelcase( value )`][@stdlib/assert/is-camelcase]</span><span class="delimiter">: </span><span class="description">test if a value is a camelcase string.</span>
-   <span class="signature">[`isCapitalized( value )`][@stdlib/assert/is-capitalized]</span><span class="delimiter">: </span><span class="description">test if a value is a string having an uppercase first character.</span>
-   <span class="signature">[`isCircular( value )`][@stdlib/assert/is-circular]</span><span class="delimiter">: </span><span class="description">test if a value is a plain object containing a circular reference.</span>
-   <span class="signature">[`isCircular( value )`][@stdlib/assert/is-circular]</span><span class="delimiter">: </span><span class="description">test if an object-like value contains a circular reference.</span>
-   <span class="signature">[`isClass( value )`][@stdlib/assert/is-class]</span><span class="delimiter">: </span><span class="description">test if a value is a class.</span>
-   <span class="signature">[`isCollection( value )`][@stdlib/assert/is-collection]</span><span class="delimiter">: </span><span class="description">test if a value is a collection.</span>
-   <span class="signature">[`isComposite( value )`][@stdlib/assert/is-composite]</span><span class="delimiter">: </span><span class="description">test if a value is a composite number.</span>
-   <span class="signature">[`isConfigurablePropertyIn( value, property )`][@stdlib/assert/is-configurable-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is configurable.</span>
-   <span class="signature">[`isConfigurableProperty( value, property )`][@stdlib/assert/is-configurable-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is configurable.</span>
-   <span class="signature">[`isConstantcase( value )`][@stdlib/assert/is-constantcase]</span><span class="delimiter">: </span><span class="description">test if a value is a constantcase string.</span>
-   <span class="signature">[`isCurrentYear( value )`][@stdlib/assert/is-current-year]</span><span class="delimiter">: </span><span class="description">test if a value is the current year.</span>
-   <span class="signature">[`isDataPropertyIn( value, property )`][@stdlib/assert/is-data-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property has a data descriptor.</span>
-   <span class="signature">[`isDataProperty( value, property )`][@stdlib/assert/is-data-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property has a data descriptor.</span>
-   <span class="signature">[`isDataView( value )`][@stdlib/assert/is-dataview]</span><span class="delimiter">: </span><span class="description">test if a value is a DataView.</span>
-   <span class="signature">[`isDigitString( value )`][@stdlib/assert/is-digit-string]</span><span class="delimiter">: </span><span class="description">test whether a string contains only numeric digits.</span>
-   <span class="signature">[`isDomainName( value )`][@stdlib/assert/is-domain-name]</span><span class="delimiter">: </span><span class="description">test if a value is a domain name.</span>
-   <span class="signature">[`isDurationString( value )`][@stdlib/assert/is-duration-string]</span><span class="delimiter">: </span><span class="description">test if a value is a duration string.</span>
-   <span class="signature">[`isEmailAddress( value )`][@stdlib/assert/is-email-address]</span><span class="delimiter">: </span><span class="description">test if a value is an email address.</span>
-   <span class="signature">[`isEmptyCollection( value )`][@stdlib/assert/is-empty-collection]</span><span class="delimiter">: </span><span class="description">test if a value is an empty collection.</span>
-   <span class="signature">[`isEmptyObject( value )`][@stdlib/assert/is-empty-object]</span><span class="delimiter">: </span><span class="description">test if a value is an empty object.</span>
-   <span class="signature">[`isEmptyString( value )`][@stdlib/assert/is-empty-string]</span><span class="delimiter">: </span><span class="description">test if a value is an empty string.</span>
-   <span class="signature">[`isEnumerablePropertyIn( value, property )`][@stdlib/assert/is-enumerable-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is enumerable.</span>
-   <span class="signature">[`isEnumerableProperty( value, property )`][@stdlib/assert/is-enumerable-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is enumerable.</span>
-   <span class="signature">[`isEven( value )`][@stdlib/assert/is-even]</span><span class="delimiter">: </span><span class="description">test if a value is an even number.</span>
-   <span class="signature">[`isFalsy( value )`][@stdlib/assert/is-falsy]</span><span class="delimiter">: </span><span class="description">test if a value is falsy.</span>
-   <span class="signature">[`isFinite( value )`][@stdlib/assert/is-finite]</span><span class="delimiter">: </span><span class="description">test if a value is a finite number.</span>
-   <span class="signature">[`isGeneratorObjectLike( value )`][@stdlib/assert/is-generator-object-like]</span><span class="delimiter">: </span><span class="description">test if a value is `generator` object-like.</span>
-   <span class="signature">[`isGeneratorObject( value )`][@stdlib/assert/is-generator-object]</span><span class="delimiter">: </span><span class="description">test if a value is a `generator` object.</span>
-   <span class="signature">[`isgzipBuffer( value )`][@stdlib/assert/is-gzip-buffer]</span><span class="delimiter">: </span><span class="description">test if a value is a gzip buffer.</span>
-   <span class="signature">[`isHexString( value )`][@stdlib/assert/is-hex-string]</span><span class="delimiter">: </span><span class="description">test whether a string contains only hexadecimal digits.</span>
-   <span class="signature">[`isInfinite( value )`][@stdlib/assert/is-infinite]</span><span class="delimiter">: </span><span class="description">test if a value is an infinite number.</span>
-   <span class="signature">[`isInheritedProperty( value, property )`][@stdlib/assert/is-inherited-property]</span><span class="delimiter">: </span><span class="description">test if an object has an inherited property.</span>
-   <span class="signature">[`isIterableLike( value )`][@stdlib/assert/is-iterable-like]</span><span class="delimiter">: </span><span class="description">test if a value is `iterable`-like.</span>
-   <span class="signature">[`isIteratorLike( value )`][@stdlib/assert/is-iterator-like]</span><span class="delimiter">: </span><span class="description">test if a value is `iterator`-like.</span>
-   <span class="signature">[`isJSON( value )`][@stdlib/assert/is-json]</span><span class="delimiter">: </span><span class="description">test if a value is a parseable JSON string.</span>
-   <span class="signature">[`isKebabcase( value )`][@stdlib/assert/is-kebabcase]</span><span class="delimiter">: </span><span class="description">test if a value is a string in kebab case.</span>
-   <span class="signature">[`isLeapYear( [value] )`][@stdlib/assert/is-leap-year]</span><span class="delimiter">: </span><span class="description">test if a value corresponds to a leap year in the Gregorian calendar.</span>
-   <span class="signature">[`isLocalhost( value )`][@stdlib/assert/is-localhost]</span><span class="delimiter">: </span><span class="description">test whether a value is a localhost hostname.</span>
-   <span class="signature">[`isLowercase( value )`][@stdlib/assert/is-lowercase]</span><span class="delimiter">: </span><span class="description">test if a value is a lowercase string.</span>
-   <span class="signature">[`isMethodIn( value, property )`][@stdlib/assert/is-method-in]</span><span class="delimiter">: </span><span class="description">test if an object has a specified method name, either own or inherited.</span>
-   <span class="signature">[`isMethod( value, property )`][@stdlib/assert/is-method]</span><span class="delimiter">: </span><span class="description">test if an object has a specified method name.</span>
-   <span class="signature">[`isMultiSlice( value )`][@stdlib/assert/is-multi-slice]</span><span class="delimiter">: </span><span class="description">test if a value is a `MultiSlice`.</span>
-   <span class="signature">[`isNamedTypedTupleLike( value )`][@stdlib/assert/is-named-typed-tuple-like]</span><span class="delimiter">: </span><span class="description">test if a value is named typed tuple-like.</span>
-   <span class="signature">[`isNativeFunction( value )`][@stdlib/assert/is-native-function]</span><span class="delimiter">: </span><span class="description">test if a value is a native function.</span>
-   <span class="signature">[`isNegativeZero( value )`][@stdlib/assert/is-negative-zero]</span><span class="delimiter">: </span><span class="description">test if a value is a number equal to negative zero.</span>
-   <span class="signature">[`isNodeBuiltin( value )`][@stdlib/assert/is-node-builtin]</span><span class="delimiter">: </span><span class="description">test whether a string matches a Node.js built-in module name.</span>
-   <span class="signature">[`isNodeDuplexStreamLike( value )`][@stdlib/assert/is-node-duplex-stream-like]</span><span class="delimiter">: </span><span class="description">test if a value is Node duplex stream-like.</span>
-   <span class="signature">[`isNodeReadableStreamLike( value )`][@stdlib/assert/is-node-readable-stream-like]</span><span class="delimiter">: </span><span class="description">test if a value is Node readable stream-like.</span>
-   <span class="signature">[`isNodeREPL()`][@stdlib/assert/is-node-repl]</span><span class="delimiter">: </span><span class="description">check if running in a Node.js REPL environment.</span>
-   <span class="signature">[`isNodeStreamLike( value )`][@stdlib/assert/is-node-stream-like]</span><span class="delimiter">: </span><span class="description">test if a value is Node stream-like.</span>
-   <span class="signature">[`isNodeTransformStreamLike( value )`][@stdlib/assert/is-node-transform-stream-like]</span><span class="delimiter">: </span><span class="description">test if a value is Node transform stream-like.</span>
-   <span class="signature">[`isNodeWritableStreamLike( value )`][@stdlib/assert/is-node-writable-stream-like]</span><span class="delimiter">: </span><span class="description">test if a value is Node writable stream-like.</span>
-   <span class="signature">[`isNonConfigurablePropertyIn( value, property )`][@stdlib/assert/is-nonconfigurable-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is non-configurable.</span>
-   <span class="signature">[`isNonConfigurableProperty( value, property )`][@stdlib/assert/is-nonconfigurable-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is non-configurable.</span>
-   <span class="signature">[`isNonEnumerablePropertyIn( value, property )`][@stdlib/assert/is-nonenumerable-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is non-enumerable.</span>
-   <span class="signature">[`isNonEnumerableProperty( value, property )`][@stdlib/assert/is-nonenumerable-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is non-enumerable.</span>
-   <span class="signature">[`isNonNegativeFinite( value )`][@stdlib/assert/is-nonnegative-finite]</span><span class="delimiter">: </span><span class="description">test if a value is a number having a nonnegative finite value.</span>
-   <span class="signature">[`isObjectLike( value )`][@stdlib/assert/is-object-like]</span><span class="delimiter">: </span><span class="description">test if a value is object-like.</span>
-   <span class="signature">[`isOdd( value )`][@stdlib/assert/is-odd]</span><span class="delimiter">: </span><span class="description">test if a value is an odd number.</span>
-   <span class="signature">[`isPascalcase( value )`][@stdlib/assert/is-pascalcase]</span><span class="delimiter">: </span><span class="description">test if a value is a string in Pascal case.</span>
-   <span class="signature">[`isPlainObject( value )`][@stdlib/assert/is-plain-object]</span><span class="delimiter">: </span><span class="description">test if a value is a plain object.</span>
-   <span class="signature">[`isPositiveZero( value )`][@stdlib/assert/is-positive-zero]</span><span class="delimiter">: </span><span class="description">test if a value is a number equal to positive zero.</span>
-   <span class="signature">[`isPrime( value )`][@stdlib/assert/is-prime]</span><span class="delimiter">: </span><span class="description">test if a value is a prime number.</span>
-   <span class="signature">[`isPrimitive( value )`][@stdlib/assert/is-primitive]</span><span class="delimiter">: </span><span class="description">test if a value is a JavaScript primitive.</span>
-   <span class="signature">[`isPRNGLike( value )`][@stdlib/assert/is-prng-like]</span><span class="delimiter">: </span><span class="description">test if a value is PRNG-like.</span>
-   <span class="signature">[`isProbability( value )`][@stdlib/assert/is-probability]</span><span class="delimiter">: </span><span class="description">test if a value is a probability.</span>
-   <span class="signature">[`isPropertyKey( value )`][@stdlib/assert/is-property-key]</span><span class="delimiter">: </span><span class="description">test whether a value is a property key.</span>
-   <span class="signature">[`isPrototypeOf( obj, prototype )`][@stdlib/assert/is-prototype-of]</span><span class="delimiter">: </span><span class="description">test if an object's prototype chain contains a provided prototype.</span>
-   <span class="signature">[`isReadOnlyPropertyIn( value, property )`][@stdlib/assert/is-read-only-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is read-only.</span>
-   <span class="signature">[`isReadOnlyProperty( value, property )`][@stdlib/assert/is-read-only-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is read-only.</span>
-   <span class="signature">[`isReadWritePropertyIn( value, property )`][@stdlib/assert/is-read-write-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is readable and writable.</span>
-   <span class="signature">[`isReadWriteProperty( value, property )`][@stdlib/assert/is-read-write-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is readable and writable.</span>
-   <span class="signature">[`isReadablePropertyIn( value, property )`][@stdlib/assert/is-readable-property-in]</span><span class="delimiter">: </span><span class="description">test if an object's own or inherited property is readable.</span>
-   <span class="signature">[`isReadableProperty( value, property )`][@stdlib/assert/is-readable-property]</span><span class="delimiter">: </span><span class="description">test if an object's own property is readable.</span>
-   <span class="signature">[`isRegExpString( value )`][@stdlib/assert/is-regexp-string]</span><span class="delimiter">: </span><span class="description">test if a value is a regular expression string.</span>
-   <span class="signature">[`isRelativePath( value )`][@stdlib/assert/is-relative-path]</span><span class="delimiter">: </span><span class="description">test if a value is a relative path.</span>
-   <span class="signature">[`isRelativeURI( value )`][@stdlib/assert/is-relative-uri]</span><span class="delimiter">: </span><span class="description">test whether a value is a relative URI.</span>
-   <span class="signature">[`isSameComplex128( v1, v2 )`][@stdlib/assert/is-same-complex128]</span><span class="delimiter">: </span><span class="description">test if two arguments are both double-precision complex floating-point numbers and have the same value.</span>
-   <span class="signature">[`isSameComplex64( v1, v2 )`][@stdlib/assert/is-same-complex64]</span><span class="delimiter">: </span><span class="description">test if two arguments are both single-precision complex floating-point numbers and have the same value.</span>
-   <span class="signature">[`isSameNativeClass( a, b )`][@stdlib/assert/is-same-native-class]</span><span class="delimiter">: </span><span class="description">test if two arguments have the same native class.</span>
-   <span class="signature">[`isSameType( a, b )`][@stdlib/assert/is-same-type]</span><span class="delimiter">: </span><span class="description">test if two arguments have the same type.</span>
-   <span class="signature">[`isSameValueZero( a, b )`][@stdlib/assert/is-same-value-zero]</span><span class="delimiter">: </span><span class="description">test if two arguments are the same value.</span>
-   <span class="signature">[`isSameValue( a, b )`][@stdlib/assert/is-same-value]</span><span class="delimiter">: </span><span class="description">test if two arguments are the same value.</span>
-   <span class="signature">[`isS