FatArrow in JavaScript

Question

I heard of it !! But I dont know How to use it yet !!
plz help!!

Answer 1

fat arrows were introduced in ES6 and are simply another syntax for writing functions

https://www.sitepoint.com/es6-arrow-functions-new-fat-concise-syntax-javascript/

function add(a, b){
return a + b;
}

can become either

var add = (a, b) => a + b;
OR
var add = (a, b) => { return a + b; }

notice that in the first option we do not use "return" statement.

when having curly braces as in the second option, a return statment is needed.

and on a side note, you shouldn't use fat arrow functions in the code playground, as not all mobile phone will support it.