Detect native Symbol.hasInstance support.
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> Detect native [Symbol.hasInstance][mdn-has-instance-symbol] support.
``bash`
npm install @stdlib/assert-has-has-instance-symbol-support
`javascript`
var hasHasInstanceSymbolSupport = require( '@stdlib/assert-has-has-instance-symbol-support' );
#### hasHasInstanceSymbolSupport()
Detects if a runtime environment supports [Symbol.hasInstance][mdn-has-instance-symbol].
`javascript`
var bool = hasHasInstanceSymbolSupport();
// returns
`javascript
var hasHasInstanceSymbolSupport = require( '@stdlib/assert-has-has-instance-symbol-support' );
var bool = hasHasInstanceSymbolSupport();
if ( bool ) {
console.log( 'Environment has Symbol.hasInstance support.' );
} else {
console.log( 'Environment lacks Symbol.hasInstance support.' );
}
`
- [@stdlib/assert-has-has-instance-symbol-support-cli][@stdlib/assert-has-has-instance-symbol-support-cli]: CLI package for use as a command-line utility.
*
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[cli-section]: https://github.com/stdlib-js/assert-has-has-instance-symbol-support#cli
[cli-url]: https://github.com/stdlib-js/assert-has-has-instance-symbol-support/tree/cli
[@stdlib/assert-has-has-instance-symbol-support]: https://github.com/stdlib-js/assert-has-has-instance-symbol-support/tree/main
[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/assert-has-has-instance-symbol-support/tree/deno
[deno-readme]: https://github.com/stdlib-js/assert-has-has-instance-symbol-support/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/assert-has-has-instance-symbol-support/tree/umd
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[esm-url]: https://github.com/stdlib-js/assert-has-has-instance-symbol-support/tree/esm
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/assert-has-has-instance-symbol-support/main/LICENSE
[mdn-has-instance-symbol]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Symbol/hasInstance