JavaScript Functions Get the name of a function object

ES6:

myFunction.name 

Explanation on MDN. As of 2015 works in nodejs and all major browsers except IE.

ES5:

If you have a reference to the function, you can do:

function functionName( func ) { // Match: // - ^ the beginning of the string // - function the word 'function' // - \s+ at least some white space // - ([\w\$]+) capture one or more valid JavaScript identifier characters // - \( followed by an opening brace // var result = /^function\s+([\w\$]+)\(/.exec( func.toString() ) return result ? result[1] : '' }