配置 VS Code 调试 JavaScript

2018-12-19  本文已影响0人  狗运天神

1、 安装 Debugger for Chrome 扩展、Open in Browser  扩展、View In Browser 扩展

2、新建文件夹 html

3、用VS Code 打开文件夹 html

4、新建 “Index.html”,内容如下:

<html>

<head>

    <script language="javascript" type="text/javascript">

        function test(obj){

            with(obj){

                var idReg = /^\d{15}$|^\d{18}$|^\d{17}[xX]$/;

                var postReg = /^\d{6}$/;

                if(!idcard.value.match(idReg)){

                    alert("身份证号不合法");

                    return false;

                }

                if(!postal.value.match(postReg)){

                    alert("邮编不合法");

                    return false;

                }

                return true;

            }

        }

    </script>

</head>

<body>

    用户详细信息:<br/>

    <form  onsubmit="return test(this)">

        邮政编码:<input type="text" name="postal"/><br/>

        身份证号:<input type="text" name="idcard"/><br/>

        <input type="submit" value="ok"/>

    </form>

<body>

</html>

5、按 F5 出现下拉列表,选择Chrome,如下图

6、再按 F5 生成 launch.json 文件:

{

"version": "0.2.0",

"configurations": [

{

"type": "chrome",

"request": "launch",

"name": "Launch Chrome against localhost",

"url": "http://localhost:8080",

"webRoot": "${workspaceRoot}"

}

]

}

7、修改 launch.json 文件为:

{

"version": "0.2.0",

"configurations": [

{

"type": "chrome",

"request": "launch",

"name": "Launch Chrome against localhost",

"url": "http://localhost:8080",

"webRoot": "${workspaceRoot}"

},

{

"name": "Launch index.html (disable sourcemaps)",

"type": "chrome",

"request": "launch",

"sourceMaps": false,

"file": "${workspaceRoot}/Index.html"

}

]

}

8、选择Launch index.html (disable sourcemaps) 调试项( 高亮蓝色),如下图:

9、在第 6 行 按 F9 设断点,如下图:

10、在 浏览器中的邮政编码中输入:abcdefgh,按 OK 按钮,程序停在了断点(6行),如图:

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