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基础语法
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‎01-JS语言基础/基础语法/01-起步.html‎

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document.write("<h1>h1标签</h1>");//页面输出内容而且识别标签
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function fn(a,b){
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return 111;
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return 1;
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}
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// 声明提升
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//1
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var a = 18;
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f1();
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function f1(){
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var b=9;
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console.log(a);//undefined
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console.log(b);//9
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var a = '123';
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}
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//2
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f2();
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console.log(cc);// 9
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console.log(bb);// 9
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console.log(aa);// 报错 is not defined
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function f2(){
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var aa = bb = cc = 9;
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console.log(aa);// 9
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console.log(bb);// 9
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console.log(cc);// 9
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}
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</script>
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</body>
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</html>

‎01-JS语言基础/基础语法/02-声明提升.html‎

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<!DOCTYPE html>
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<html>
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<head lang="en">
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<meta charset="UTF-8">
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<title></title>
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</head>
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<body>
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<script type="text/javascript">
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// 声明提升
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//1
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var a = 18;
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f1();
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function f1(){
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var b=9;
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console.log(a);//undefined
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console.log(b);//9
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var a = '123';
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}
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//2
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f2();
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console.log(cc);// 9
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console.log(bb);// 9
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console.log(aa);// 报错 is not defined
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function f2(){
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var aa = bb = cc = 9;
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console.log(aa);// 9
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console.log(bb);// 9
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console.log(cc);// 9
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}
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</script>
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</body>
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</html>

01-JS语言基础/基础语法/02-变量命名.html renamed to 01-JS语言基础/基础语法/03-变量命名.html

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01-JS语言基础/基础语法/03-变量交换.html renamed to 01-JS语言基础/基础语法/04-变量交换(不借助其他变量).html

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01-JS语言基础/基础语法/06-操作符优先级.html renamed to 01-JS语言基础/基础语法/05-操作符优先级.html

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01-JS语言基础/基础语法/10-逻辑中断.html renamed to 01-JS语言基础/基础语法/06-逻辑中断.html

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01-JS语言基础/基础语法/13-函数.html renamed to 01-JS语言基础/基础语法/11-函数.html

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</head>
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<body>
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<script>
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//1.函数声明
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function funcName(){
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//函数体
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}
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//2.函数表达式
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//在使用函数表达式声明函数的时候,function后面可以跟函数名,只限在函数内部使用，外部无法访问
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var funcName1 = function name(){
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//函数体
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}
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funcName1();
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//3.Function
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var funcName2 = new Function();
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//函数就是具有一定功能的可以重复执行的代码块
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//函数的组成分为： 1.参数 2.返回值 3.功能
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//如果函数名相同，后面的函数会覆盖前面的函数（函数名不能一样）

‎01-JS语言基础/基础语法/11-数组.html‎

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‎01-JS语言基础/基础语法/12-break和continue.html‎

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01-JS语言基础/基础语法/14-变量和作用域.html renamed to 01-JS语言基础/基础语法/12-变量和作用域.html

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