get-function-name-x v3.1.2

get-function-name-x

Get the name of the function.

module.exports(fn) ⇒ undefined | string ⏏

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

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

Example

import getFunctionName from 'get-function-name-x';

console.log(getFunctionName()); // undefined
console.log(getFunctionName(Number.MIN_VALUE)); // undefined
console.log(getFunctionName('abc')); // undefined
console.log(getFunctionName(true)); // undefined
console.log(getFunctionName({name: 'abc'})); // undefined
console.log(getFunctionName(function() {})); // ''
console.log(getFunctionName(new Function())); // ''
console.log(getFunctionName(function test1() {})); // 'test1'
console.log(getFunctionName(function* test2() {})); // 'test2'
console.log(getFunctionName(class Test {});) // 'Test'