phpjs/functions/strings/stripslashes.js

php.js offers community built php functions in javascript

function stripslashes(str) {
  //       discuss at: http://phpjs.org/functions/stripslashes/
  //      original by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
  //      improved by: Ates Goral (http://magnetiq.com)
  //      improved by: marrtins
  //      improved by: rezna
  //         fixed by: Mick@el
  //      bugfixed by: Onno Marsman
  //      bugfixed by: Brett Zamir (http://brett-zamir.me)
  //         input by: Rick Waldron
  //         input by: Brant Messenger (http://www.brantmessenger.com/)
  // reimplemented by: Brett Zamir (http://brett-zamir.me)
  //        example 1: stripslashes('Kevin\'s code');
  //        returns 1: "Kevin's code"
  //        example 2: stripslashes('Kevin\\\'s code');
  //        returns 2: "Kevin\'s code"

  return (str + '')
    .replace(/\\(.?)/g, function(s, n1) {
      switch (n1) {
        case '\\':
          return '\\';
        case '0':
          return '\u0000';
        case '':
          return '';
        default:
          return n1;
      }
    });
}