npm package: @stdlib/assert-is-square-number
Description: Test if a value is a square number.
Author: The Stdlib Authors
Latest version: 0.2.3

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<details>
  <summary>
    About stdlib...
  </summary>
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</details>

# isSquareNumber

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

> Test if a value is a square number.

<section class="intro">

A **square number** is defined as an integer value which is the square of an integer.

</section>

<!-- /.intro -->

<section class="installation">

## Installation

```bash
npm install @stdlib/assert-is-square-number
```

</section>

<section class="usage">

## Usage

```javascript
var isSquareNumber = require( '@stdlib/assert-is-square-number' );
```

#### isSquareNumber( value )

Tests if a `value` is a square number.

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

```javascript
var Number = require( '@stdlib/number-ctor' );

var bool = isSquareNumber( 4.0 );
// returns true

bool = isSquareNumber( new Number( 4.0 ) );
// returns true

bool = isSquareNumber( 3.14 );
// returns false

bool = isSquareNumber( -5.0 );
// returns false

bool = isSquareNumber( NaN );
// returns false

bool = isSquareNumber( null );
// returns false
```

#### isSquareNumber.isPrimitive( value )

Tests if a `value` is a primitive square number.

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

```javascript
var Number = require( '@stdlib/number-ctor' );

var bool = isSquareNumber.isPrimitive( 4.0 );
// returns true

bool = isSquareNumber.isPrimitive( new Number( 4.0 ) );
// returns false
```

#### isSquareNumber.isObject( value )

Tests if a `value` is a `Number` object having a value which is a square number.

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

```javascript
var Number = require( '@stdlib/number-ctor' );

var bool = isSquareNumber.isObject( 4.0 );
// returns false

bool = isSquareNumber.isObject( new Number( 4.0 ) );
// returns true
```

</section>

<!-- /.usage -->

<section class="examples">

## Examples

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

<!-- eslint no-undef: "error" -->

```javascript
var Number = require( '@stdlib/number-ctor' );
var isSquareNumber = require( '@stdlib/assert-is-square-number' );

var bool = isSquareNumber( 4.0 );
// returns true

bool = isSquareNumber( new Number( 4.0 ) );
// returns true

bool = isSquareNumber( 0.0 );
// returns true

bool = isSquareNumber( 1.0 );
// returns true

bool = isSquareNumber( 3.14 );
// returns false

bool = isSquareNumber( -5.0 );
// returns false

bool = isSquareNumber( NaN );
// returns false

bool = isSquareNumber( '0.5' );
// returns false

bool = isSquareNumber( null );
// returns false
```

</section>

<!-- /.examples -->

<!-- Section for related `stdlib` packages. Do not manually edit this section, as it is automatically populated. -->

<section class="related">

* * *

## See Also

-   <span class="package-name">[`@stdlib/assert-is-cube-number`][@stdlib/assert/is-cube-number]</span><span class="delimiter">: </span><span class="description">test if a value is a cube number.</span>
-   <span class="package-name">[`@stdlib/assert-is-integer`][@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="package-name">[`@stdlib/assert-is-number`][@stdlib/assert/is-number]</span><span class="delimiter">: </span><span class="description">test if a value is a number.</span>
-   <span class="package-name">[`@stdlib/assert-is-triangular-number`][@stdlib/assert/is-triangular-number]</span><span class="delimiter">: </span><span class="description">test if a value is a triangular number.</span>

</section>

<!-- /.related -->

<!-- Section for all links. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->


<section class="main-repo" >

* * *

## Notice

This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].

#### Community

[![Chat][chat-image]][chat-url]

---

## License

See [LICENSE][stdlib-license].


## Copyright

Copyright &copy; 2016-2026. The Stdlib [Authors][stdlib-authors].

</section>

<!-- /.stdlib -->

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<section class="links">

[npm-image]: http://img.shields.io/npm/v/@stdlib/assert-is-square-number.svg
[npm-url]: https://npmjs.org/package/@stdlib/assert-is-square-number

[test-image]: https://github.com/stdlib-js/assert-is-square-number/actions/workflows/test.yml/badge.svg?branch=v0.2.3
[test-url]: https://github.com/stdlib-js/assert-is-square-number/actions/workflows/test.yml?query=branch:v0.2.3

[coverage-image]: https://img.shields.io/codecov/c/github/stdlib-js/assert-is-square-number/main.svg
[coverage-url]: https://codecov.io/github/stdlib-js/assert-is-square-number?branch=main

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[stdlib]: https://github.com/stdlib-js/stdlib

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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules

[deno-url]: https://github.com/stdlib-js/assert-is-square-number/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-is-square-number/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-is-square-number/tree/umd
[umd-readme]: https://github.com/stdlib-js/assert-is-square-number/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/assert-is-square-number/tree/esm
[esm-readme]: https://github.com/stdlib-js/assert-is-square-number/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/assert-is-square-number/blob/main/branches.md

[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/assert-is-square-number/main/LICENSE

<!-- <related-links> -->

[@stdlib/assert/is-cube-number]: https://www.npmjs.com/package/@stdlib/assert-is-cube-number

[@stdlib/assert/is-integer]: https://www.npmjs.com/package/@stdlib/assert-is-integer

[@stdlib/assert/is-number]: https://www.npmjs.com/package/@stdlib/assert-is-number

[@stdlib/assert/is-triangular-number]: https://www.npmjs.com/package/@stdlib/assert-is-triangular-number

<!-- </related-links> -->

</section>

<!-- /.links -->