npm package: @stdlib/number-float64-base-assert
Description: Base double-precision floating-point number assert functions.
Author: The Stdlib Authors
Latest version: 0.3.1

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<details>
  <summary>
    About stdlib...
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# Assert

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

> Base double-precision floating-point number assert functions.

<section class="installation">

## Installation

```bash
npm install @stdlib/number-float64-base-assert
```

</section>

<section class="usage">

## Usage

```javascript
var assert = require( '@stdlib/number-float64-base-assert' );
```

#### assert

Namespace containing "base" double-precision floating-point number assert functions.

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

The namespace contains the following functions:

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

<div class="namespace-toc">

-   <span class="signature">[`isAlmostEqual( a, b, maxULP )`][@stdlib/number/float64/base/assert/is-almost-equal]</span><span class="delimiter">: </span><span class="description">test if two double-precision floating-point numbers are approximately equal within a specified number of ULPs (units in the last place).</span>
-   <span class="signature">[`isAlmostSameValue( a, b, maxULP )`][@stdlib/number/float64/base/assert/is-almost-same-value]</span><span class="delimiter">: </span><span class="description">test if two double-precision floating-point numbers are approximately the same value within a specified number of ULPs (units in the last place).</span>
-   <span class="signature">[`isSameValueZero( a, b )`][@stdlib/number/float64/base/assert/is-same-value-zero]</span><span class="delimiter">: </span><span class="description">test if two double-precision floating-point numbers are the same value.</span>
-   <span class="signature">[`isSameValue( a, b )`][@stdlib/number/float64/base/assert/is-same-value]</span><span class="delimiter">: </span><span class="description">test if two double-precision floating-point numbers are the same value.</span>

</div>

<!-- </toc> -->

</section>

<!-- /.usage -->

<!-- Package notes. Make sure to keep an empty line after the `section` element and another before the `/section` close. -->

<section class="notes">

</section>

<!-- /.notes -->

<section class="examples">

## Examples

<!-- TODO: better examples -->

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

```javascript
var objectKeys = require( '@stdlib/utils-keys' );
var ns = require( '@stdlib/number-float64-base-assert' );

console.log( objectKeys( ns ) );
```

</section>

<!-- /.examples -->

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

<section class="related">

</section>

<!-- /.related -->

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<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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[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/number-float64-base-assert/tree/deno
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<!-- <toc-links> -->

[@stdlib/number/float64/base/assert/is-almost-equal]: https://www.npmjs.com/package/@stdlib/number-float64-base-assert-is-almost-equal

[@stdlib/number/float64/base/assert/is-almost-same-value]: https://www.npmjs.com/package/@stdlib/number-float64-base-assert-is-almost-same-value

[@stdlib/number/float64/base/assert/is-same-value-zero]: https://www.npmjs.com/package/@stdlib/number-float64-base-assert-is-same-value-zero

[@stdlib/number/float64/base/assert/is-same-value]: https://www.npmjs.com/package/@stdlib/number-float64-base-assert-is-same-value

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</section>

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