What are the js debugging methods?

1. Open the console:

Method: F12 key or right-click in a blank space of the browser and click the "Inspect" option, or Ctrl+Shift+i key

2. Click the "Console" option and enter "console" in the console

3. This way you can know what console methods are, the more commonly used ones There are:

console.log(“打印信息”); 
console.error(“打印信息”); 
console.dir()可以显示一个对象所有的属性和方法。

For example: console.dir(document.body)

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