regex to allow only numbers and single dot in jquery

Question

Regex to allow only numbers and single dot when entering number to textbox in jquery.

Please suggest any regex to allow only numbers and single dot in textbox.

I have tried the following code.

$("#amountId").val().replace( /[^0-9]+/g, '')

Your question is unclear, please provide examples of valid and invalid inputs. — georg, Jun 13 '13 at 12:26

score 5 · Answer 1 · edited Jun 13 '13 at 12:21

5

[-+]?([0-9]*\.[0-9]+|[0-9]+).

See Matching Floating Point Numbers With Regex

edited Jun 13 '13 at 12:21

HamZa

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answered Jun 13 '13 at 12:20

ahPo

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score 1 · Answer 2 · edited Jun 13 '13 at 12:20

1

This will find something like this 1234.5678
/\d+\.\d+/

edited Jun 13 '13 at 12:20

HamZa

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answered Jun 13 '13 at 12:15

alex

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score 0 · Answer 3 · answered Jun 13 '13 at 12:15

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This regex should do the trick for you, \d+\.$, and here is a Rubular to prove it. You could even consider prefacing the string with the ^ so that nothing can come before the digits too, like this, ^\d+\.$.

answered Jun 13 '13 at 12:15

Mike Perrenoud

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score 0 · Answer 4 · answered Jun 13 '13 at 12:33

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I would try using the following:

\d+\.\d?{2}

http://rubular.com/r/a83BWznDuy

answered Jun 13 '13 at 12:33

Michael Durrant

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regex to allow only numbers and single dot in jquery

4 Answers4