javascript check if string contains any symbols

Question

I have the following set of symbols:

var a = '|\/~^:,;?!&%$@*+';

How can I check is the following string contains any of those symbols?

var b = 'avguybdf';

Answer 1

Use RegEx

Check the how to use regex @ Javascript RegEx

Answer 2

Try one of the following examples that use regular expressions:

http://www.webdeveloper.com/forum/showthread.php?264705-Best-way-to-check-for-multiple-characters-in-a-string

http://tjvantoll.com/2013/03/14/better-ways-of-comparing-a-javascript-string-to-multiple-values/

Answer 3

As suggested, regular expressions will work.

b.match(/[|\\/~^:,;?!&%$@*+]/);

EDIT: I originally used the method here https://stackoverflow.com/a/6969486/2044733 to escape the string but because of the grouping, only the backslash character needs to be escaped.

The "/" at the beginning and end of the string are the delimiters for regular expressions in javascript, and "[]" are used to group the characters. In case you're wondering how this works.

Answer 4

Use RegEx. You can use test() or exec(). Read more here: http://www.w3schools.com/jsref/jsref_obj_regexp.asp