JS regular expressions get the string before the specified character after the specified character (recommended)

A common scenario, get: Tag background image link:

For example string: var bgImg = "url

(\"https://img30./sku/jfs/t26203/262/100869187/204098/1d1479e9/\")";

script:

var backgroundImageRegex=/(?<=url\(").+(?="\))/;
var matchResult=(backgroundImageRegex);
if(>0){
  alert(matchResult[0]);
}

Key points:

0-Special characters: ()"    These three need to be escaped

1-After getting the specified string: (?<=Specified string)

2-Get the specified string before: (?=Specified string)

Summarize

The above is the string before the JS regular expression introduced by the editor to obtain the specified characters after obtaining the specified characters. I hope it will be helpful to everyone. If you have any questions, please leave me a message and the editor will reply to everyone in time. Thank you very much for your support for my website!