JavaScript Array.splice() Method

Javascript Web Development Front End Technology Object Oriented Programming

The splice() method of JavaScript is used to add or remove item. It returns the removed item.

The syntax is as follows −

array.splice(index, num, item1, ....., itemX)

Here, index is the integer specifying at what position to add or remove items, num is the number of items to remove, item1…itemX are the items to be added to the array.

Let us now implement the splice() method in JavaScript −

Example

Live Demo

<!DOCTYPE html>
<html>
<body>
<h2>Products</h2>
<p>Click to display the updated product list...</p>
<button onclick="display()">Result</button>
<p id="test"></p>
<script>
   var products = ["Electronics", "Books", "Accessories"];
   document.getElementById("test").innerHTML = products;
   function display() {
      products.splice(1, 2, "Pet Supplies", "Footwear");
      document.getElementById("test").innerHTML = products;
   }
</script>
</body>
</html>

Output

Click the “Result” button above −

Example

Live Demo

<!DOCTYPE html>
<html>
<body>
<h2>Products</h2>
<p>Click to display the updated product list...</p>
<button onclick="display()">Result</button>
<p id="test"></p>
<script>
   var products = ["Electronics", "Books", "Accessories"];
   document.getElementById("test").innerHTML = products;
   function display() {
      products.splice(3, 1, "Pet Supplies", "Footwear", "Home Appliances");
      document.getElementById("test").innerHTML = products;
   }
</script>
</body>
</html>