avoid to escape a special characters in javascript

Question

My server returns value as support\\testing. When I get this value in client it can be escaped as support testing. \\t is escaped

Answer 1

Best Solution for this

function valid(f) {            
        debugger;
        var s = "!@#$%^&*()+=-[]\\\';,./{}|\":<>?~";
        str = f.value;
        for (var i = 0; i < str.length; i++) {
           if (s.indexOf(str.charAt(i)) != -1) {
              //alert("The box has special characters. \nThese are not allowed.\n");
              f.value = f.value.replace(str.charAt(i), '');// : null;
              return false;
            }
        }
 }