How to ignore white space with regex?

gyula

Here is my regex:

^(SK{1}[0-9]{8})$

But I want text like this:

SK 283 92758
SK 283 92 7 58

to be taken as this:

SK28392758

It is possible?

Bohemian

Use the "optional" quantifier ? for a space between each character:

^S ?K ?(\d ?){7}\d$

This allows an optional space between the characters.
To allow any number of spaces, replace every ? with *.

See live demo.

I also removed unnecessary brackets:

  • {1} is pointless
  • the brackets around the whole thing are unecessary; group 0, which is the whole match, is always available is you absolutely need a capture group

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