@stdlib/symbol-ctor NPM

Symbol

Symbol factory.

Installation

npm install @stdlib/symbol-ctor

Usage

var Symbol = require( '@stdlib/symbol-ctor' );

Symbol( [description] )

Returns a Symbol primitive.

var s = Symbol();
// returns <symbol>

To aid debugging, provide a symbol description.

var s = Symbol( 'beep' );
// returns <symbol>

Notes

Unlike conventional constructors, the function does not support the new keyword.
The function is only supported in environments which support symbols. In non-supporting environments, the value is undefined.

Examples

var hasSymbolSupport = require( '@stdlib/assert-has-symbol-support' );
var Symbol = require( '@stdlib/symbol-ctor' );

var s;

if ( hasSymbolSupport() ) {
    s = Symbol( 'beep' );

    // Print the value type:
    console.log( typeof s );
    // => 'symbol'

    // Serialize the symbol as a string:
    console.log( s.toString() );
    // => 'Symbol(beep)'

    // Test symbol equality:
    console.log( s === Symbol( 'beep' ) );
    // => false
} else {
    console.log( 'Environment does not support symbols.' );
}

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.