README
Native Function
Regular expression to match a native function.
Installation
npm install @stdlib/regexp-native-function
Usage
var reNativeFunction = require( '@stdlib/regexp-native-function' );
reNativeFunction()
Returns a regular expression to match a native function
.
var RE_NATIVE_FUNCTION = reNativeFunction();
var bool = RE_NATIVE_FUNCTION.test( Date.toString() );
// returns true
reNativeFunction.REGEXP
Regular expression to match a native function
.
var bool = reNativeFunction.REGEXP.test( Date.toString() );
// returns true
Examples
var Int8Array = require( '@stdlib/array-int8' );
var reNativeFunction = require( '@stdlib/regexp-native-function' );
var RE_NATIVE_FUNCTION = reNativeFunction();
function isNativeFunction( fcn ) {
return RE_NATIVE_FUNCTION.test( fcn.toString() );
}
var bool = isNativeFunction( Math.sqrt );
// returns true
bool = isNativeFunction( String );
// returns true
bool = isNativeFunction( Int8Array );
// returns true
bool = isNativeFunction( Date );
// returns true
bool = isNativeFunction( function noop() {} );
// 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 © 2016-2022. The Stdlib Authors.