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Anonymous User

Anonymous User

04-Aug-2021

In JavaScript you can use an array which is used to store a set of values ​​in a variable. You can add or remove values ​​in an array at any index position.

Below we will discuss a variety of methods that are used to add or remove an element from an array. Let's go through it :

  • pop() function: pop() method remove elements from the end of an array.
  • shift() function: shift() method is used to remove elements from the beginning of an array.
  • splice() function: splice() method is used to remove elements from a specific index of an array.
  • filter() function: filter() method is used to remove elements programmatically.

Let's check all the method one by one in the below example : 

<!DOCTYPE html>

<html>

<head>

</head>

<body>

</body>

<script>

    function func() {

        var arr = ['shift', 'splice', 'filter', 'pop'];

        var popped = arr.pop();

        document.write('Removed element: ' + popped + '<br>');

        document.write('Remaining elements: ' + arr + '<br>' + '<br>');

    }

    func();

    var array = ['pop', 'splice', 'filter', 'shift']

    document.write('Original array: ' + array + '<br>')

    while (array.length) {

        array.pop();

    }

    document.write('Array Length: ' + array.length + '<br>' + '<br>');

    function shifted() {

        var arr = ['shift', 'splice', 'filter', 'pop'];

        var shifted = arr.shift();

        document.write('Removed element: ' + shifted + '<br>');

        document.write('Remaining elements: ' + arr + '<br>' + '<br>');

    }

    shifted();

    function spliced() {

        var arr = ['shift', 'splice', 'filter', 'pop'];

        // Removing the specified element from the array 

        var spliced = arr.splice(1, 1);

        document.write('Removed element: ' + spliced + '<br>');

        document.write('Remaining elements: ' + arr + '<br>' + '<br>');

    }

    spliced();

</script>

</html>

Hope this code will be helpful for you.

Happy Coding!

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