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View on GitHub Note: A commonly accepted practice is to use const except in cases of loops and reassignment. However, in this resource I'll be using let in place of var for all ES6 examples. Variable: x Object: obj Array: arr Function: func Parameter…
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原文链接:ES6 Syntax and Feature Overview View on GitHub Keyword Scope Hoisting Can Be Reassigned Can Be Redeclared var Function scope Yes Yes Yes let Block scope No Yes No const Block scope No No No Understanding Variables, Scope, and Hoisting in JavaScr…
因为现在网上的教程都不靠谱,于是决定自己跳坑自己写,分为三块来玩: 一.环境搭建 二.语法讲解 三.项目实战 很多时候,你想搞一个东西,却因为环境没有搭建好,而不能很开森的探索未知的世界,多年的编程经验的我依然没有说服自己在没有自动提示,没有高亮关键词的情况下去裸身探索. 独乐乐不如众悦乐,于是这篇文字出来了. 一.环境搭建 1.安装JavaScriptNext,mac下cmd+shift+p,install package ,搜索 javascriptNext,然后安装即可 自动提示es6语法…
sublime3安装Es6插件 javascriptNext,然后安装即可 Java​Script​Next - ES6 Syntax()高亮插件 ----------------------------------------------------------------- let.const命令 与var声明 let块级作用域 let不允许在代码块内重复声明一个变量 function aa(){ let a=3 { let a=5 //子作用域 } } 使用var声明的变量,其作用域为该语…
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