var, let, const
Boolean, Null, Undefined, Number, String, Object, Array
parseInt(), parseFloat(), toString(),
JSON.stringify(),
JSON.parse()
Destructuring Assignment; Destructuring Array, Destructuring Object
if, if ~ else, if ~ else if
for, for ~ in
Array = [], length, push(), pop(), indexOf(), filter{}
Object = {}, hasOwnProperty()
Spread Operator; …
function, arrow function
class, ES6+
module.export, require, import, export default, import ~ from ~, import ~ as ~ from ~