Remove emoji

gistfile1.txt

function toUnicode(theString) {
      var unicodeString = '';
      for (var i=0; i < theString.length; i++) {
        var theUnicode = theString.charCodeAt(i).toString(16).toUpperCase();
        while (theUnicode.length < 4) {
          theUnicode = '0' + theUnicode;
        }
        theUnicode = '\\u' + theUnicode;
        unicodeString += theUnicode;
      }
      return unicodeString;
    }

function removeEmoji(input)
    {

        var temp = toUnicode(input);


        temp = temp.replace(/\\uD83D\\u.{4}/g,'');

        var r = /\\u([\d\w]{4})/gi;
        temp = temp.replace(r, function (match, grp) {
            return String.fromCharCode(parseInt(grp, 16)); } );
        temp = unescape(temp);

        return temp;
    }

var input = 'ASdasd 🙉🚓🚗🚍 好好';
console.log(input);