Create Time: 14th April 2024
Title: "[[Web/Javascript/Quick-Start]]"
status: DONE
Author:
  - AllenYGY
tags:
  - Javascript
  - Program
  - NOTE
created: 2024-04-14T00:21
updated: 2024-05-12T23:16

Web/Javascript/Quick-Start

引入Js

<script> 
</script>

输出

弹窗alert()
打印console.log()

数据类型

Number

JavaScript中不区分小数和整数
-99 //负数99
NaN //not a number
Infinity //表示无限大

String

‘ABC’
“ABC”

Boolean value

True、false