Regular expression for the numbers below 2100

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Please provide me the regular expression for the numbers below 2100

Posted 28-Nov-12 20:35pm

shinju atholi

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OriginalGriff · Answer 1 · 2012-11-28T21:04:00

While you could do a regex for "all numbers below nnnn" it would be extremely long and difficult to maintain. Regular expressions are text matching processors, not numeric comparators, and there are better ways to do this kind of validation. Parse the text to an integer, and (if it works) check it's numeric value. It will be quicker to write, quicker to execute, a lot clearer to read, and much, much easier to maintain.

Regexes are very powerful tools, but like any tool, they should be used for the correct job. Would you use a soldering iron to hang a picture?