max923 / JavaScript

JavaScript 全攻略：克服 JS 的奇怪部分

Global Environment:

• .Global Object -- Web(window)
• .this

Hoising

Setup Memory Space for Variables and Functions "Hoisting"

    b() // called b
    console.log(a) // undefined
    var a = 'Hello word'
    function b () {
      console.log('called b')
  }