Javascript string replace with regex to strip off illegal characters

Question

Need a function to strip off a set of illegal character in javascript: |&;$%@\"<>()+,

This is a classic problem to be solved with regexes, whi

Answer 1

I tend to look at it from the inverse perspective which may be what you intended:

What characters do I want to allow?

This is because there could be lots of characters that make in into a string somehow that blow stuff up that you wouldn't expect.

For example this one only allows for letters and numbers removing groups of invalid characters replacing them with a hypen:

"This¢£«±Ÿ÷could&*()\/<>be!@#$%^bad".replace(/([^a-z0-9]+)/gi, '-');
//Result: "This-could-be-bad"