How to remove an element from an array using its index?

If you want to remove an element from an array using its index, then you simply use splice() method

If you want to remove an element from an array using its index, then you simply use splice() method.

This method can be used to add and remove the element from the array in javascript.

Have a look at the below function :

function removeFromArrayByIndex(arr, index) {

arr.splice(index, 1);

}

test = new Array();

test[0] = ‘onion’;

test[1] = ‘tomato’;

test[2] = ‘beans’;

test[3] = ‘peas’;

//alert(“Array before removing elements: “+test);

removeByIndex(test, 2);

//alert(“Array after removing elements: “+test);

Check the results by the alerts.