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Test if a single-precision floating-point numeric value is NaN.
To use in Observable,
isnanf = require( 'https://cdn.jsdelivr.net/gh/stdlib-js/math-base-assert-is-nanf@umd/browser.js' )
To vendor stdlib functionality and avoid installing dependency trees for Node.js, you can use the UMD server build:
var isnanf = require( 'path/to/vendor/umd/math-base-assert-is-nanf/index.js' )
To include the bundle in a webpage,
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/math-base-assert-is-nanf@umd/browser.js"></script>
If no recognized module system is present, access bundle contents via the global scope:
<script type="text/javascript">
(function () {
window.isnanf;
})();
</script>
Tests if a single-precision floating-point numeric
value is NaN
.
var bool = isnanf( NaN );
// returns true
<!DOCTYPE html>
<html lang="en">
<body>
<script type="text/javascript" src="https://cdn.jsdelivr.net/gh/stdlib-js/math-base-assert-is-nanf@umd/browser.js"></script>
<script type="text/javascript">
(function () {
var bool = isnanf( NaN );
// returns true
bool = isnanf( 5.0 );
// returns false
})();
</script>
</body>
</html>
@stdlib/math-base/assert/is-nan
: test if a double-precision floating-point numeric value is NaN.
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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