How to remove specific element from an array in JavaScript

0 1760

You can easily remove the specific item (index) in JavaScript using the loop, and Array splice() Method. Array splice() method allows removing the item from an array at a specific index in JavaScript.

This method can be useful when you want to add/remove more than one element for a JavaScript Array.

Syntax:

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

Array splice() method requires 3 parameters.

index: It is Required. It knows about specifies the position to remove/add (start splicing the array) the elements in the current JavaScript Array.
howmany: It is an optional. It tells about how many specifies elements to be removed (deleteCount).
item: It is Optional. It tells about how many specifies new elements to be added.

Program:

<!DOCTYPE html>
<html>
<head>
 <title>
 How to Remove specific index in JavaScript?
</title>
</head>
<body>
  <h1>Remove an element from an array in JavaScript</h1>
  <p>The original array is: HTML, CSS, JavaScript, Jquery, PHP, MySQL</p>
  <p>Click the button to remove 3rd element from the array.</p>
  <p>The new array looks like this:<strong> <span id="display"></span> </strong></p>
    <br/>
  <button onclick="remove_ele()">Try it</button>
 <script type="text/javascript">
 var WebLang = ["HTML", "CSS", "JavaScript", "Jquery", "PHP", "MySQL" ];
   document.getElementById("display").innerHTML = WebLang;
   function remove_ele() {
   WebLang.splice(2, 1);
   document.getElementById("display").innerHTML = WebLang;
   }
 </script>
</body>
</html>