javascript regex : possible to have a range in the quantifier?

Asked Oct 25 '16 at 17:55

Active Oct 25 '16 at 17:55

Viewed 26 times

I have the following regex to match / test IP addresses:

 /^(?!0)(?!.*\.$)((1?\d?\d|25[0-5]|2[0-4]\d)(\.|$)){4}/$

So far, so good. Now, I have to create a utility that will test for parts of an ip address string like this:

10.10.10.10 //should pass
10.10.10    //should pass
123.23      //should also pass

I was hoping to recycle my existing code and just put something like {1-4} as the quantifier but so far, it's a no go.

asked Oct 25 '16 at 17:55

Happydevdays

On a sidenote, it would probably be better not to parse IPs as strings, but rather as numbers (see [this](https://github.com/indutny/node-ip), for example). – Aleksei Zabrodskii Oct 25 '16 at 17:58
3

You meant to use `{1,4}` I think. See https://regex101.com/r/cEVc0Q/1 – Wiktor Stribiżew Oct 25 '16 at 17:59

0 Answers0