@stdlib/assert-is-function
v0.2.2
Published
Test if a value is a function.
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isFunction
Test if a value is a function.
Installation
npm install @stdlib/assert-is-function
Usage
var isFunction = require( '@stdlib/assert-is-function' );
isFunction( value )
Tests if a value
is a function
.
function beep() {
console.log( 'beep' );
}
var bool = isFunction( beep );
// returns true
Examples
var isFunction = require( '@stdlib/assert-is-function' );
var bool = isFunction( function foo() {} );
// returns true
bool = isFunction( 'beep' );
// returns false
bool = isFunction( 5 );
// returns false
bool = isFunction( true );
// returns false
bool = isFunction( null );
// returns false
bool = isFunction( [] );
// returns false
bool = isFunction( {} );
// returns false
Notice
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.
Community
License
See LICENSE.
Copyright
Copyright © 2016-2024. The Stdlib Authors.