关于javascript:源栈培训前端调试神器F12

古代浏览器简直都内置了调试工具，而且关上的形式都是间接按 F12，

能够十分不便的查看以后页面的（以 Chrome 为例）：

HTML 元素（Element）
演示：

选中 / 批改元素
查看 / 批改 CSS

JavaScript 代码（Source）
演示：

设置断点
运行调试

网络交互状况（Network）
演示查看：

Request 和 Response
Get 和 Post

缓存

利用（Application）
这个名获得怪怪的，^_^

演示：

查看 / 删除 cookie
查看 / 批改 Local/SessionStorage
此外，还提供了：

控制台（Console）
演示：略

响应式切换（Device）

演示：略

设置
演示：禁用 JavaScript
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