###Basic Syntax
(param1, param2, …, paramN) => { statements }
(param1, param2, …, paramN) => expression
// equivalent to: => { return expression; }
// Parentheses are optional when there's only one parameter:
(singleParam) => { statements }
singleParam => { statements }
// A function with no parameters requires parentheses:
() => { statements }
###Advanced Syntax
// Parenthesize the body to return an object literal expression:
params => ({foo: bar})
// Rest parameters and default parameters are supported
(param1, param2, ...rest) => { statements }
(param1 = defaultValue1, param2, …, paramN = defaultValueN) => { statements }
// Destructuring within the parameter list is also supported
var f = ([a, b] = [1, 2], {x: c} = {x: a + b}) => a + b + c;
f(); // 6