JavaScript Regex to check for certain characters

Question

I am looking for a JavaScript function that checks for the following characters (without commas) in a string. If they are present, it would return false, else returns true.

<,>,(,),#,"",',:,::

Jimmy · Accepted Answer · 2010-05-07 16:18:12Z

4

function (str) { 
   return ! (/[<>()#':]|""/.test(str));
}

any set of single characters can put put inside a [set of brackets]. For longer patterns, use the pipe.

edit: as patrick pointed out, if you're checking for : you don't need to check for :: separately.

edited May 7, 2010 at 16:18

answered May 7, 2010 at 15:41

Jimmy

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3 Comments

Josh Over a year ago

@patrick Funny, I gave @nickf +1 because his didn't negate!

user113716 Over a year ago

@Josh - I didn't catch this at first, but the request was specifically to return false if the character was found.

user113716 Over a year ago

Although, it is a bit redundant to check for both : and :: since you can't have the second without the first.

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