How to convert one emoji character to Unicode codepoint number in JavaScript?

Question

how to convert this 😀 into this 1f600 in javascript

'😀'.charCodeAt(0);  

this will return unicode 55357 but how to get 1f600 from 😀

Generality

This npm package has method to convert into Unicode. npmjs.com/package/emoji-unicode – Linesman

@gurvinder372 i already tried your solution it is not working. This is not duplicate question – Generality

@MitulGedeeya how to do it in browser ?? – Generality

@ParthGajjar Share what you tried in the question itself so that we know what you have already tried. Create a working snippet demonstrating the issue itself. – Peterpeterborough

Sorry it will be server side rendering. :) let me give you answer with the function – Linesman

@MitulGedeeya used same code and converted for browser side Thanks :) – Generality

okay and you also can try my answer below. – Linesman

Answer 1

Added script to convert this on browser side

function emojiUnicode (emoji) {
    var comp;
    if (emoji.length === 1) {
        comp = emoji.charCodeAt(0);
    }
    comp = (
        (emoji.charCodeAt(0) - 0xD800) * 0x400
      + (emoji.charCodeAt(1) - 0xDC00) + 0x10000
    );
    if (comp < 0) {
        comp = emoji.charCodeAt(0);
    }
    return comp.toString("16");
};
emojiUnicode("😀"); # result "1f600"

thanks to https://www.npmjs.com/package/emoji-unicode

Generality

That's wrong. When you removed the returns from the original function and didn't add the proper ifs and elses you altered the function. Correct would be how it is here: raw.githubusercontent.com/IonicaBizau/emoji-unicode/… – Gloriane

What about emojis that are a combination of two others and have charCodeAt from 0 to 4? E.g.: 🤦‍♀️ – Agra

(Javascript), In case you need to convert it back to Emoji again use: String.fromCodePoint(parseInt ("1f600", 16)) – Zonked

Country flag doesn't render properly – Womanlike

@Parth Gajjar: sir can you tell me how to get get emoji from \uD83D\uDE0A this string? – Lindsley

Simple Heart '♥' returns NaN – Muirhead

Is there a way to type a string using this value? Unicode are expected to be 4 digits and emojis got 5 so I can't manually type "\u12345" and get an emoji, since "\u1234" is already a character. See this related issue: #19557526 Text editors will display the emoji but it's confusing not to be able to "see" the underlying raw values – Tow

If I go on this site emojiterra.com/fr/antenne-satellite, for JavaScript, I'll get "\uD83D\uDCE1" for a satellite emoji, so 2 4-digit value and not 1 5-digit value. How can I obtain this value? – Tow

Answer 2

Two way

let hex = "😀".codePointAt(0).toString(16)
let emo = String.fromCodePoint("0x"+hex);

console.log(hex, emo);

Commercial

Really appreciate having the reverse function here! – Grider

\uD83D\uDE0A sir i need to convert mentioned uniquecode to emoji? – Lindsley

@Kapilsoni try console.log( String.fromCodePoint("0xD83D","0xDE0A") ) (I get this: 😊 - but if I change sequence of this 2 strings I get �� , if I join strings to "0xD83DDE0A" I get exception – Grimbly

@KamilKiełczewski:sir my case unicode string is \uD83D\uDE0A.if directly put \uD83D\uDE0A in fromCodePoint its not working.can i convert in any another format? – Lindsley

@AndreasM. ofcourse, however OP needs hex in question – Grimbly

Answer 3

This is what I use:

const toUni = function (str) {
  if (str.length < 4)
    return str.codePointAt(0).toString(16);
  return str.codePointAt(0).toString(16) + '-' + str.codePointAt(2).toString(16);
};

Armes

It seems to me this Proso (provider of solution) has the right idea. According to Mozilla developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/… codePointAt is specifically for handling emojis or icons. – Bodycheck

🔎 My experimentation indicates you do not need the toString(16). If the emoji is 2 chars long (s.length >1), then the 0 position codePointAt(0), renders up the dec needed for html display. – Bodycheck

My mistake, the toString(16) is get the Hex value. – Bodycheck

Answer 4

Please Read This Link.

Here is the function :

function toUTF16(codePoint) {
var TEN_BITS = parseInt('1111111111', 2);
function u(codeUnit) {
  return '\\u'+codeUnit.toString(16).toUpperCase();
}

if (codePoint <= 0xFFFF) {
  return u(codePoint);
}
codePoint -= 0x10000;

// Shift right to get to most significant 10 bits
var leadSurrogate = 0xD800 + (codePoint >> 10);

// Mask to get least significant 10 bits
var tailSurrogate = 0xDC00 + (codePoint & TEN_BITS);

 return u(leadSurrogate) + u(tailSurrogate);
}

Linesman

Best solution if you want to get it working in RESP API using json. It give output like "\uD83D\uDE00" (for 😀) – Wadesworth

Answer 5

Emojis like 👩‍⚕️ have two parts: 👩 +⚕️.
Here is how to get their code:

emoji = "👩‍⚕️" // corresponds to  1f469-200d-2695-fe0f
code1 = emoji.codePointAt(0).toString(16) // gives only 1f469
code2 = [...emoji].map(e => e.codePointAt(0).toString(16)).join(`-`) // gives correctly 1f469-200d-2695-fe0f
console.log(code1)
console.log(code2)

Kirghiz

emoji_code = "-".join(f"{ord(c):x}" for c in "👩‍⚕️") would be the corresponding implementation in python. – Kirghiz

Answer 6

Here is another way. Source

 "😀".codePointAt(0).toString(16)

Disposable

Great answer, combine that with this data source: github.com/iamcal/emoji-data/blob/master/emoji.json and you get a great way to convert emojis to shortcuts – Heiner

Answer 7

Best answer in my view is to use node-emoji package.

https://www.npmjs.com/package/node-emoji

Here are steps.

1. do npm i node-emoji

   var emoji = require('node-emoji');
   var convertEmoji = function(data){
   if(emoji.hasEmoji(data)){
       return emoji.unemojify(data);
     }
     else{
        return data;
     }
   }
   

Wampum

Answer 8

const 
  getUnicodeHex = char => char.codePointAt(0).toString(16),    
  getEmoji = unicodeHex => String.fromCodePoint(unicodeHex)

console.log(
  getUnicodeHex('😀'),  // 1f600
  getEmoji(0x1f600)     // 😀
)

Idempotent