Symbols.
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> [Symbol][mdn-symbol] factory.
``bash`
npm install @stdlib/symbol-ctor
`javascript`
var Symbol = require( '@stdlib/symbol-ctor' );
#### Symbol( \[description] )
Returns a [Symbol][mdn-symbol] primitive.
`javascript`
var s = Symbol();
// returns
To aid debugging, provide a [symbol][mdn-symbol] description.
`javascript`
var s = Symbol( 'beep' );
// returns
- Unlike conventional constructors, the function does not support the new keyword.undefined
- The function is only supported in environments which support [symbols][mdn-symbol]. In non-supporting environments, the value is .
`javascript
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.' );
}
`
*
This package is part of [stdlib][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][stdlib], see the main project [repository][stdlib].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[stdlib]: https://github.com/stdlib-js/stdlib
[stdlib-authors]: https://github.com/stdlib-js/stdlib/graphs/contributors
[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/symbol-ctor/tree/deno
[deno-readme]: https://github.com/stdlib-js/symbol-ctor/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/symbol-ctor/tree/umd
[umd-readme]: https://github.com/stdlib-js/symbol-ctor/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/symbol-ctor/tree/esm
[esm-readme]: https://github.com/stdlib-js/symbol-ctor/blob/esm/README.md
[branches-url]: https://github.com/stdlib-js/symbol-ctor/blob/main/branches.md
[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/symbol-ctor/main/LICENSE
[mdn-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol