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Right now I can set a specific length, or a range, but not two different lengths, both valid.
pattern=”{11}” <-One specific length
pattern=”{11,15}” <-Range
How do you get it to accept only 11 or 15 but nothing else? No 12, 13, 14, 5, etc.
Thanks
The pattern attribute is based on regular expressions. RegEx {} checks for character occurences (in your case 11 and 15).
You can’t check for exactly two different (non-adjacent) lengths with one expression and one {} notation.
You would need to write two expressions: the first one checks for 11 characters and the second one for 15 characters. You can chain these two regular expressions with some conditionality. Some If-else-conditionality exists, but may not be supported by the browsers.