About stdlib...
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.
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.
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.
To join us in bringing numerical computing to the web, get started by checking us out on GitHub, and please consider financially supporting stdlib. We greatly appreciate your continued support!
Test if two single-precision floating-point numbers are the same value.
import isSameValuef from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-float32-base-assert-is-same-value@deno/mod.js';
Tests if two single-precision floating-point numbers a
and b
are the same value.
import toFloat32 from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-float64-base-to-float32@deno/mod.js';
var bool = isSameValuef( toFloat32( 3.14 ), toFloat32( 3.14 ) );
// returns true
bool = isSameValuef( toFloat32( 5.0 ), toFloat32( 3.0 ) );
// returns false
In contrast to the strict equality operator ===
, the function distinguishes between +0
and -0
and treats NaNs
as the same value.
var bool = ( 0.0 === -0.0 );
// returns true
bool = isSameValuef( 0.0, -0.0 );
// returns false
bool = isSameValuef( -0.0, -0.0 );
// returns true
bool = ( NaN === NaN );
// returns false
bool = isSameValuef( NaN, NaN );
// returns true
- The function implements the SameValue Algorithm as specified in ECMAScript 5.
import toFloat32 from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-float64-base-to-float32@deno/mod.js';
import isSameValuef from 'https://cdn.jsdelivr.net/gh/stdlib-js/number-float32-base-assert-is-same-value@deno/mod.js';
var bool = isSameValuef( toFloat32( 3.14 ), toFloat32( 3.14 ) );
// returns true
bool = isSameValuef( toFloat32( 0.0 ), toFloat32( 0.0 ) );
// returns true
bool = isSameValuef( toFloat32( -0.0 ), toFloat32( 0.0 ) );
// returns false
bool = isSameValuef( toFloat32( NaN ), toFloat32( NaN ) );
// returns true
This package is part of stdlib, a standard library 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, see the main project repository.
See LICENSE.
Copyright © 2016-2024. The Stdlib Authors.