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Regular Expression to find values of a certain lenght

Posted on 2016-09-27
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Last Modified: 2016-09-29
I just need a regular expression that will find values that are not 12 bytes in length.  

For example:

123                           --->  Error, less than 12
123456789012      ---->  Valid
1234567890123   -----> Error, greater than 12
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Question by:tmajor99
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Patrick Matthews earned 2000 total points
ID: 41818026
Assuming you mean "the entire input is 12 consecutive digits, no more, no less":

^\d{12}$

If that pattern returns a match, you're good; if not, then not.
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