Question mark with the colon (?:) in solution 2

JavaScript
1

Continuing the discussion from freeCodeCamp Challenge Guide: Spinal Tap Case:

In solution 2, what is the difference between .split(/(?:_| )+/) and .split(/(_| )+/)?

I understand that the question mark whith the colon (?: ) means that the group is matched but is not captured for back-referencing, but i don’t see the point of it in this solution. Somebody can helpme to understand this?

Thanks in advance.

2

Try them both in the terminal or a service like repl and see the difference it makes. :wink: I bet that you can work through it with some fiddling, but definitely let us know if that doesn’t help.

3

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