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Regex for Integer Equal to or greater than 100

Posted on 2013-12-06
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Last Modified: 2013-12-06
Need a regex for integers equal to or greater than 100.
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Question by:894359
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by:käµfm³d 👽
ID: 39702545
You can use:

^(1\d\d|\d{4,})$

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Author Comment

by:894359
ID: 39702557
Hi,
This doesn't work . try 999 or any number that doesn't start with a 1 and is 3 digits long.
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Expert Comment

by:käµfm³d 👽
ID: 39702563
My apologies. I was writing that on the way out of the door of the office. Corrected:

^([1-9]\d\d|[1-9]\d{3,})$

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käµfm³d   👽 earned 500 total points
ID: 39702566
Shorter version:

^[1-9]\d\d\d*$

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LVL 82

Expert Comment

by:leakim971
ID: 39702585
Why a regex?

if( i * 1 >= 100 ) { // in term of performance it's faster than a regex !
   alert("your integer is equal to or greater than 100!")
}
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Author Comment

by:894359
ID: 39702606
I have to use a regex. it is for a tool.
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Author Closing Comment

by:894359
ID: 39702608
Thank you!
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Expert Comment

by:leakim971
ID: 39702624
So why Javascript topic? Anyway, if you're happy, I'm happy... and I think kaufmed is happy too :)

Have a nice week-end!
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