what are the differences between unshift() and push() methods in javascript?

Javascript Object Oriented Programming Programming

Both the methods are used to add elements to the array.But the only difference is unshift() method adds the element at the start of the array whereas push() adds the element at the end of the array.

1) push()

Array.push() method is used to add an element at the end of an array like a queue .In the following example it is shown how to add an element using push() method

Live Demo

Example

<html>
<body>
<script>
   var cars = ["Benz", "Lamborghini", "Tata safari"];
   cars.push("Ferrari");
   document.write(cars);
</script>
</body>
</html>

Output

Benz,Lamborghini,Tata safari,Ferrari

2) unshift()

Array.unshift() method is used to add an element at the starting of an array.

Live Demo

Example

<html>
<body>
<script>
   var cars = ["Benz", "Lamborghini", "Tata safari"];
   cars.unshift("Ferrari");
   document.write(cars);
</script>
</body>
</html>