jQuery remove special characters from string and more

Question

I have a string like this:

var str = \"I\'m a very^ we!rd* Str!ng.\";

What I would like to do is removing all special characters from the a

Answer 1

Remove numbers, underscore, white-spaces and special characters from the string sentence.

str.replace(/[0-9`~!@#$%^&*()_|+\-=?;:'",.<>\{\}\[\]\\\/]/gi,'');

Demo

Answer 2

replace(/[^a-z0-9\s]/gi, '') will filter the string down to just alphanumeric values and replace(/[_\s]/g, '-') will replace underscores and spaces with hyphens:

str.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '-')

Source for Regex: RegEx for Javascript to allow only alphanumeric

Here is a demo: http://jsfiddle.net/vNfrk/

Answer 3

str.toLowerCase().replace(/[\*\^\'\!]/g, '').split(' ').join('-')

Answer 4

Assuming by "special" you mean non-word characters, then that is pretty easy.

str = str.replace(/[_\W]+/g, "-")

Answer 5

Since I can't comment on Jasper's answer, I'd like to point out a small bug in his solution:

str.replace(/[^a-z0-9\s]/gi, '').replace(/[_\s]/g, '-');

The problem is that first code removes all the hyphens and then tries to replace them :) You should reverse the replace calls and also add hyphen to second replace regex. Like this:

str.replace(/[_\s]/g, '-').replace(/[^a-z0-9-\s]/gi, '');

Answer 6

this will remove all the special character

 str.replace(/[_\W]+/g, "");

this is really helpful and solve my issue. Please run the below code and ensure it works

var str="hello world !#to&you%*()";
console.log(str.replace(/[_\W]+/g, ""));