If you've ever worked with regular expressions, you know how difficult and tedious it is to craft complex regex code. However, while it won't work in every situation, REGex Tester, an online regular ...
If I have a field that is valid if either it is blank or matches a regular expression (For example: \d{10}), how would I write a regular expression that would match any valid input?<BR><BR>(In other ...
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