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javascriptregex

Better solution to regex.exec() assignment in while loop

Is there any better solution to this here? I try to avoid the assignment inside while but still be able to loop through the matches and use the captured groups. 

var match = "";
var CSS_URL_PATTERN = /url\s*\(\s*["|']?(.*?)\s*["|']?\)\s*/gm
while ((match = CSS_URL_PATTERN.exec(someBigCSSString)) !== null) {
   // Do stuff here per match…
}

I added a bit more context to this question, also a RegEx example.

Solution

  • I always do as follows when I need .exec:

    var re = /.../g, match;
while (match = re.exec(...)) {
    //...
}

    Regular expressions with g flag causes infinite effect when it is in the loop condition.

    What are the differences between Fx 3.x and Fx 4.x that made many userscripts stop working?