es6.md

ES6

• Traversy Crash Course

Arrow Functions

One of a programmer's favorite things to do is to write clean and concise code. Arrow Functions are a new way to write functions, given to us by the ECMAScript 6 (The software standard JavaScript is based upon) update of JavaScript.

It's a little different from regular functions, take a look:

// ES5 Function
function addNum(num1, num2) {
  return num1 + num2;
}

// Arrow Function (stored in variable)
const addNum = (num1, num2) => {
  return num1 + num2;
};

If you've done some research, you may come to the following conclusions:

1. First of all, the Arrow Function is anonymous by design. If we want to refer to it, we should store it into a variable.
2. Secondly, the way Arrow Functions can be written can differ (while still working the same way). Sometimes you don't need the () if there's a single parameter. Sometimes you can return a value without use for the return keyword.

Extra reading on arrow functions:

• JavaScript ES6 Arrow Functions
• Let's learn ES6 - Arrow Functions
• When (and why) you should use ES6 arrow functions — and when you shouldn’t
• this: tyler mcginnis
• youtube search
• dario garcia moya