Question

Hi i have a field in php that will be validated in javascript using i.e for emails

var emailRegex = /^[\w-\.]+@([\w-]+\.)+[\w-]{2,4}$/;

What i’m after is a validation check which will look for the
first letter as a capital Q
then the next letters can be numbers only
then followed by a .
then two numbers only
and then an optional letter
i.e Q100.11 or Q100.11a

I must admit i look at the above email validation check and i have no clue how it works but it does 😉

many thanks for any help on this

Steve

Answer 1

var regex = /^Q[0-9]+\.[0-9]{2}[a-z]?$/;

+ means one or more

the period must be escaped – \.

[0-9]{2} means 2 digits, same as \d{2}

[a-z]? means 0 or 1 letter

You can check your regex at http://regexpal.com/