https://code.visualstudio.com/
es6
定义变量
const声明常量（只读变量）
// 1、声明之后不允许改变
const PI = “3.1415926”
PI = 3 // TypeError: Assignment to constant variable.
// 2、一但声明必须初始化，否则会报错
const MY_AGE // Missing initializer in const declaration
结构赋值
声明对象简写
箭头函数
箭头函数提供了一种更加简洁的函数书写方式。基本语法是：
参数 => 函数体
箭头函数多用于匿名函数的定义
创建默认页面基础代码
文件 => 首选项 => 用户片段 => 新建全局代码片段文件：
{"vue htm": {"scope": "html","prefix": "vuehtml","body": ["<!DOCTYPE html>","<html lang=\"en\">","","<head>"," <meta charset=\"UTF-8\">"," <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">"," <meta http-equiv=\"X-UA-Compatible\" content=\"ie=edge\">"," <title>Document</title>","</head>","","<body>"," <div id=\"app\">",""," </div>"," <script src=\"vue.min.js\"></script>"," <script>"," new Vue({"," el: '#app',"," data: {"," $1"," }"," })"," </script>","</body>","","</html>",],"description": "my vue template in html"}
}
单项绑定
双向绑定
事件
条件渲染
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