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Editorial Team
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Editorial Team
Asked: May 13, 20262026-05-13T21:55:16+00:00 2026-05-13T21:55:16+00:00

I need help with a regex matching a number. I need up to 3

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I need help with a regex matching a number. I need up to 3 digits after the dot (.):

12345    ok
12       ok
12.1     ok
12.12    ok
12.123   ok
12.1234  Error
1.123456 Error

how to do it? Thanks in advance.

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  1. Editorial Team
    Editorial Team
    2026-05-13T21:55:16+00:00Added an answer on May 13, 2026 at 9:55 pm
    ^\d+(\.\d{1,3})?$
    
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