9 characters requires 2 letters in the beginning ie ab1234567 and 10 characters needs to have all digits i,e 1234567890. How do I do this using regex?
Here is what I have tried.
/^[a-zA-Z]{2}[\d]{7}|[\d]{10}$/
This doesnt seem to work. I would greatly appreciate your help.
The |
in your regex allows it to match either of these two possibilities:
^[a-zA-Z]{2}[\d]{7}
[\d]{10}$
That is, start of string then 2 letters and seven numbers followed by anything, or anything followed by 10 numbers and end of string. Try this:
/^([a-zA-Z]{2}\d{7}|\d{10})$/
(Note also that I've removed the []
from around each \\d
- there's no point having a character class with only one character in it.)
The problem is that the ^
is only applying the first option, and the $
only applies to the second one.
Try this:
/^(?:[a-z]{2}\d{7}|\d{10})$/i
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