regular expression

Can u help me in simple regular expression that will match the string
‘123_456_7890’ but not ‘123_456_789’.

You're going to have to be a little more specific - the regular
expression /0/ matches the first string and not the second but that's
probably not what you wanted.


The thing you’re asking is not very specific, there’s a lot to be interpreted, but this might be what you are looking for: \d{3}\d{3}\d{4}

Best regards

Peter De Berdt


I Need regular expression that will match the string '123_456_7890'
not '123_456_789'

Do you know a site of that quality ( for XPath??? That
site rocks!!!

Well, Google found this one pretty quick:

Maybe it can find others, too, if that one doesn't work for you.

\d{3}_\d{3}_\d{4}., thats the answer.,

i really appreciate., thanks a lot.

Can you guide me for this please.,
2. In Ruby there is a command called ‘require’. Explain what this
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