javascript unicode emoji regular expressions

Question

i want to replace all emoji in string with icon now i successfully replaced those {:) :D :P :3 <3 XP .... etc} to icon so if user write :) thi

Answer 1

You can change to \U characters with below function.

var emojiToUnicode=function (message){
    var emojiRegexp = /([\uE000-\uF8FF]|\uD83C[\uDC00-\uDFFF]|\uD83D[\uDC00-\uDFFF]|[\u2694-\u2697]|\uD83E[\uDD10-\uDD5D])/g;
    if(!message)
        return;
    try{ 
        var newMessage = message.match(emojiRegexp);
        for(var emoj in newMessage){
              var emojmessage = newMessage[emoj];
              var index = message.indexOf(emojmessage);
              if(index === -1)
                  continue;
              emojmessage = "\\u" + emojmessage.charCodeAt(0).toString(16) + "\\u" + emojmessage.charCodeAt(1).toString(16);
              message = message.substr(0, index) + emojmessage + message.substr(index + 2);
            }
        return message;
    }catch(err){
        console.error("error in emojiToUnicode"+err.stack);
    }
 };