JSFiddle - React, Tailwind, and code Playground

by Mohamed Mulla

JavaScript

var jsonObj = [{'Id':'1','Username':'Ray','FatherName':'Thompson'},  
               {'Id':'2','Username':'Steve','FatherName':'Johnson'},
               {'Id':'3','Username':'Albert','FatherName':'Einstein'}];

for (var i=0; i<jsonObj.length; i++) {
  if (jsonObj[i].Id == 3) {
    jsonObj[i].Username = "Mo";
    break;
  }
}

alert("New Username: " + jsonObj[2].Username);