Question

I lack experience with regex and I need some help.
I need to extract a git tag. The input string is like this:

6dde3d91f23bff5ab81e91838f19f306b33fe7a8refs/tags/3.4.2

// there is a new line at the end of the string

The part of the string I need is 3.4.2. Here is my code:

var pattern = /.*([0-9]{1}\.{1}[0-9]{1}\.{1}[0-9]{1}).*/ig;
var match = pattern.exec(string);
// match[1] gets what I need

It works, but this regex is ridiculously long, there must be a way to make it shorter. Can somebody help me?

Thanks

Answer 1

You can replace [0-9]{1} with \d as follows:

/\d\.\d\.\d$/

The $ matches the end of the line.

Edit: updated based on Rob-W‘s feedback