For text validation for chars I am using like [a-zA-z] and for numbers like [0-9] ..if I need to add special symbols I am adding slash like [a-zA-z/-/].
While including lot of symbols its getting difficult and my javascript is getting extremely big. Is there an easy way to do it ?
Regards A.Collins
You can take a look at this cheat sheet. for instance, [0-9] can be reduced to \d.
For the general case of "a lot of characters" — no.
\w for alphanumerics and underscores\d for digits\s for whitespaceYou can mix them, resulting in stuff like, for example, [\d.] (for matching numbers & dots).
In a character class, x-y means "all characters between x and y". If you just have one additional character, in your case / then you don't need to use the x-y format, you can just drop the character in:
[a-zA-z/]
That's not the correct way to escape characters. \ is the correct escape character to be used:
[a-zA-Z\/]
You can use character classes, [a-zA-Z0-9] can be replaced by [\w]. The only characters that needs to be escaped are \ and -. ^ should be escaped too when it's the first character in the character class.
[A-z]is equivalent to[A-Z[\\\\]^_`a-z]so it does not only containA–Zbut alsoa–zand the characters[,\,],^,_and`that are betweenZanda.