Regex pattern for numeric values

Created Nov 14, 2008 Edited Nov 14, 2008

Viewed 323072

I need an regular expression pattern to only accept positive whole numbers. It can also accept a single zero.

I do not want to accept decimals, negative number and numbers with leading zeros.

Any suggestions?

regex

^(0|[1-9][0-9]*)$

Federico_Ramponi_187700

"[1-9][0-9]*|0"

I'd just use "[0-9]+" to represent positive whole numbers.

Cheery_217110

/([1-9][0-9]*)|0/

Alex_Brault_258180

/^0|[1-9]\d*$/

Robert_Gamble_252220