Given a string such as:

23,234,456 first second third

How can I split string this into two parts, where part 1 contains the number at the beginning and part 2 contains the rest---but only if the string STARTS with a number, and the number can be comma-separated or not? In other words, I want two results: 23,234,456 and first second third. If there's a number in that string that isn't part of the first number then it should be in the second result.

My best stab at this so far, to grab the number at the beginning, is something like this:

^[0-9]+(,[0-9]{3})*

Which seems to grab a comma-separated or non-comma-separated number that starts the line. However, when I run this in the Javascript console I get not only the full number, but also a match on just the last 3 digits with their preceeding ,. (e.g. 23,234,456 and ,456).

As for getting the rest into another var I'm having trouble. I tried working with \b, etc., but I think I must be missing something fundamental about grabbing the rest of the line.

I'm doing this in Javascript in case it matters.

More examples of what to match and what not to match.

2 one two three should return 2 and one two three

2345 one two three should return 2345 and one two three

2 one 2 three should return 2 and one 2 three

2,234 one two 3,000 should return 2,234 and one two 3,000

The space between parts 1 and two could be included in the beginning of part 2.