What is d- in regular expression?

Question

1.00/5 (3 votes)

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I don't use regular expression often. Let's say demo.
What is d- referring to?

What I have tried:

I can't find the it on MSDN.

Quantifiers in Regular Expressions

doesn't include minus(-).

Posted 11-May-17 14:04pm

Updated 11-May-17 21:49pm

2 solutions

Install and use Expresso[^] to find out.

Posted 11-May-17 14:32pm

Comments

Member 12658724 11-May-17 21:44pm

Not sure why it works. Because \d-. matches 1234-.
I think that -? should work. The quantifer should place before digital number.

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Richard MacCutchan · Accepted Answer · 2017-05-11T21:49:00

Posted 11-May-17 21:49pm