javascript[js] code to get url parameters_javascript skills

Recently, when I was making a page, I needed to use JavaScript to get the url parameters. I found that there were so many things on the Internet, and there were so many errors. I was really confused and wasted a lot of time. So, I will summarize it and find a useful one. That’s it. Let me first state that it is simpler to use regular expressions, but the compatibility and speed of multiple browsers cannot be guaranteed, so I will use one that is compatible with multiple browsers