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- Users: RichardH123
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Form field validation - characters 1 and 4
I am trying to validate a form field. The field can have a maximum of 4 characters. The first character is always the letter 'A', the fourth character can be either the letter 'A' or the letter 'B' but nothing else. I also need a mask on the field like this A _ _ _ I have this code, but I am...- RichardH123
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- Replies: 3
- Forum: Javascript
