Question

Possible Duplicate:
Regex exec only returning first match

"a1b2c3d".replace(/[0-9]/g,"x")

returns “axbxdxd” as expected.

/[0-9]/g.exec("a1b2c3d")

however only returns an array containing one item: [“1”]. Shouldn’t it return all matches?

Thanks in advance!

Answer 1

No. You need to call exec multiple times:

var re = /[0-9]/g;
var input = "a1b2c3d";
var myArray;
while ((myArray = re.exec(input)) != null)
{
  var msg = "Found " + myArray[0] + ".  ";
  print(msg);
}

Edit: The Mozilla Developer Network page on exec has much more to say about this function. That’s where I got the example and modified it for your question.

Edit 2: I’ve changed the above code so it isn’t actually an infinite loop. 🙂