get-function-args-x

Get the args of the function.

module.exports(fn) ⇒ undefined | Array ⏏

This method returns the args of the function, or undefined if not a function.

Kind: Exported function
Returns: undefined | Array - The args of the function, or undefined if not a function.

| Param | Type | Description | | ----- | --------------------- | -------------------------------- | | fn | function | The function to get the args of. |

Example

import getFunctionArgs from 'get-function-args-x';

getFunctionArgs(); // undefined
getFunctionArgs(Number.MIN_VALUE); // undefined
getFunctionArgs('abc'); // undefined
getFunctionArgs(true); // undefined
getFunctionArgs({name: 'abc'}); // undefined
getFunctionArgs(function() {}); // []
getFunctionArgs(new Function()); // []
getFunctionArgs(function test() {}); // []
getFunctionArgs(function test(a, b) {}); // ['a', 'b']
getFunctionArgs(function* test(a, b) {}); // ['a', 'b']
getFunctionArgs((a, b) => {}); // ['a', 'b']
getFunctionArgs(async function test(a, b) {}); // ['a', 'b']