JS + ES6 - Built-in types

js-gist-07.js

/**
 * JS + ES6 - Buit-in types.
 *
 * There are 6 built-in types in JavaScript (undefined, string, number, boolean, null, object). Plus, a new one
 * introduced with ES6 (symbol).
 **/
var foo;
console.log(typeof foo); // "undefined"

var bar = 'P. Nutt';
console.log(typeof bar); // "string"

var biz = 10;
console.log(typeof biz); // "number"

var boo = true;
console.log(typeof boo); // "boolean"

var bat = null;
console.log(typeof bat); // "object", wait! This should be null. Where is the object?!

var ppl = {
    name: 'P. Nutt'
};
console.log(typeof ppl); // "object"