JSFiddle - React, Tailwind, and code Playground

by Bahman ParsaManesh

HTML

<div id="persian"></div>

JavaScript

String.prototype.toPersianDigits= function(){
      var persianNumbers = ['۰','۱','۲','۳','۴','۵','۶','۷','۸','۹'];
      return this.replace(/[0-9]/g, function(n){
         return persianNumbers[+n]
      });
  }

  var digit = "2018".toPersianDigits();

  $("#persian").html(digit);