Once after page loads, your DOM is ready to load the functions $(document).ready(function(){ myFunction(); }); function myFunction(){ alert("Hello World"); } var carsArray = ["Ford", "Maruthi", "Benz", "Audi"]; carsArray.sort(); //to sort the array //To find its value, then seach by its index carsArray[0] means you will get its value as Audi what is JSON array JSON array is array with key and value pair or Object inside an Array. JSON array most popular data format or data model used in current market. var carJsonArra = [{"Teja":29},{"Meena":24},{"Mouni":28}]; carJsonArra[0]// means it gives 0th index value as {"Teja":29} which is a object inside an array carJsonArra.length // gives length of the array means count of objects inside array //Loop the array in javascript var myData = [{Name: 'Teja'},{Name: 'Mouni'},{Name: 'Meena'}] for(var i=0;i...