User can only enter letters and digits in a input text box Original code is from: http://stackoverflow.com/questions/895659/how-do-i-block-or-restrict-special-characters-from-input-fields-with-jquery

Input text box only accepts letters or digits

$('input').bind('keypress', function (event) {
    var regex = new RegExp("^[a-zA-Z0-9]+$");
    var key = String.fromCharCode(!event.charCode ? event.which : event.charCode);
    if (!regex.test(key)) {
       event.preventDefault();
       return false;
    }
});

this isn't working

worked for me, I used keydown though and didn't use bind(used old style)

Thanks, it is working for me. How can I also add the ability to press "Enter" ?

EDIT
Solved: I added \r\n like this
var regex = new RegExp("^[a-zA-Z0-9\r\n]+$");