time-to-botec/squiggle/node_modules/@stdlib/assert/has-weakmap-support/README.md

WeakMap Support

Detect native WeakMap support.

Usage

var hasWeakMapSupport = require( '@stdlib/assert/has-weakmap-support' );

hasWeakMapSupport()

Detects if a runtime environment supports ES2015 WeakMap.

var bool = hasWeakMapSupport();
// returns <boolean>

Examples

var hasWeakMapSupport = require( '@stdlib/assert/has-weakmap-support' );

var bool = hasWeakMapSupport();
if ( bool ) {
    console.log( 'Environment has WeakMap support.' );
} else {
    console.log( 'Environment lacks WeakMap support.' );
}

---

CLI

Usage

Usage: has-weakmap-support [options]

Options:

  -h,    --help                Print this message.
  -V,    --version             Print the package version.

Examples

$ has-weakmap-support
<boolean>