Question

I am not good at Regular expression and couldn’t find an easy way for this problem.

i have an expression like:

TR_NN_Expression

Where NN is a number of 2 digits, and Expression can contain ‘_’, so i can’t use split for this. I would like to get the Expression. Any help would be greater appreciated.

Answer 1

You can use this regular expression:

TR_[0-9]{2}_(.*)

The part you want will be in the capturing group. Example usage:

> s = 'TR_01_My#@34_Expresion'
"TR_01_My#@34_Expresion"
> s.match(/TR_[0-9]{2}_(.*)/)[1]
"My#@34_Expresion"