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Most people do not understand the knowledge of this article "how to debug JavaScript", so the editor summarizes the following content, detailed content, clear steps, and has a certain reference value. I hope you can get something after reading this article. Let's take a look at this "how to debug JavaScript" article.

There are two ways to debug JavaScript, which are console.log () and debugger. The following classification shows how the two methods are debugged.

Console.log () method

Open the web page you want to debug with your browser, press F12 or check the elements, view the source code, select console, and you can debug.

Debugger keyword debugging

The debugger keyword is used to stop JavaScript execution and call the debug function, just like setting a breakpoint effect in the debug tool. When we turn on debugger, the code stops execution before the third line. Without debugging, the debugger statement will not work. Examples are as follows:

Var x = 15 * 5 debugging document.getElementbyId ("demo") [xss_clean] = x; the above is about "how to debug debug" this article, I believe you all have a certain understanding, I hope the editor to share the content is helpful to you, if you want to learn more about the relevant knowledge, please follow the industry information channel.

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