Provide a more useful example for arrow functions

[maxdow]

In the example you use a primitive as a return value and you talk about "concise body" . Maybe it can be confuse because a function is not needed here.

As an example you could use an addition

var addition= function(a,b) {
    return a+b;
};

// Implementation with Arrow Function
var addition= (a,b) => a+b;

It demonstrates the gain of using es6 syntax and you don't have to write a notice