Arrow Function Support

Detect native arrow function support.

Usage

var hasArrowFunctionSupport = require( '@stdlib/assert/has-arrow-function-support' );

hasArrowFunctionSupport()

Detects if a runtime environment supports ES2015 arrow functions such as ( a, b ) => a + b, x => x, or ( x ) => { return x*x; }.

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

Notes

The implementation uses code evaluation, which may be problematic in browser contexts enforcing a strict content security policy (CSP).

Examples

var hasArrowFunctionSupport = require( '@stdlib/assert/has-arrow-function-support' );

var bool = hasArrowFunctionSupport();
if ( bool ) {
    console.log( 'Environment has native arrow function support.' );
} else {
    console.log( 'Environment lacks native arrow function support.' );
}

CLI

Usage

Usage: has-arrow-function-support [options]

Options:

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

Examples

$ has-arrow-function-support
<boolean>