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Test if two arguments are the same value.
To use in Observable,
isSameValueZero = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-same-value-zero@umd/browser.js' )To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var isSameValueZero = require( 'path/to/vendor/umd/assert-is-same-value-zero/index.js' )To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-same-value-zero@umd/browser.js"></script>If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.isSameValueZero;
})();
</script>Tests if two arguments a and b are the same value.
var bool = isSameValueZero( false, false );
// returns true
bool = isSameValueZero( '', '' );
// returns true
bool = isSameValueZero( {}, {} );
// returns falseIn contrast to the strict equality operator ===, the function treats NaNs as the same value.
var bool = ( NaN === NaN );
// returns false
bool = isSameValueZero( NaN, NaN );
// returns trueIn contrast to the SameValue Algorithm, the function does not distinguish between +0 and -0.
var bool = ( 0.0 === -0.0 );
// returns true
bool = isSameValueZero( 0.0, -0.0 );
// returns true
bool = isSameValueZero( -0.0, 0.0 );
// returns true<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/assert-is-same-value-zero@umd/browser.js"></script>
<script type="text/javascript">
(function () {
var bool = isSameValueZero( true, true );
// returns true
bool = isSameValueZero( true, false );
// returns false
bool = isSameValueZero( 'beep', 'beep' );
// returns true
bool = isSameValueZero( 3.14, 3.14 );
// returns true
bool = isSameValueZero( null, null );
// returns true
bool = isSameValueZero( 0.0, 0.0 );
// returns true
bool = isSameValueZero( -0.0, 0.0 );
// returns true
bool = isSameValueZero( NaN, NaN );
// returns true
bool = isSameValueZero( {}, {} );
// returns false
bool = isSameValueZero( [], [] );
// returns false
bool = isSameValueZero( isSameValueZero, isSameValueZero );
// returns true
})();
</script>
</body>
</html>@stdlib/assert-is-same-value: test if two arguments are the same value.@stdlib/assert-is-strict-equal: test if two arguments are strictly equal.
This package is part of 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, see the main project repository.
See LICENSE.
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