CODEWITHSUNDEEP
javascriptregexinput
newoverstack
newoverstack

Reputation: 25

Regex code in javascript for restricting input field

I have a question about restricting the value entered in some input field. I would like to input this :

9digits-whatever, for example 101010101-Teststring.

I have come up with this regex as a solution, but it does not seem to be correct:

^\d{9}\-[a-zA-Z0-9_]*$

Any ideas on this one?

Thank you.

Upvotes: 0

Views: 64

Answers (2)

Braj
Braj

Reputation: 46841

  • There is no need to escape hyphen -.
  • Use \w that include [a-zA-Z0-9_]

Try below regex if there is only [a-zA-Z0-9_] after 9 digits and hyphen.

^\d{9}-\w*$

Online demo

Upvotes: 1

Avinash Raj
Avinash Raj

Reputation: 174696

The below regex would match 9 digits follwed by - and any number of characters.,

^\d{9}-.*$

If you want a minimum of one character followed by -, then try the below regex.

^\d{9}-.+$

Explanation:

  • ^ Asserts that we are at the beginning of the line.
  • \d{9} Exactly 9 digits.
  • \- Literal - symbol.
  • .* Matches any character zero or more times.
  • $ End of the line.

Upvotes: 2

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