![]() The final values will be: arr2 //, since we didn't deleted an element from an array arr // Modifying an existing element To add new items to an array, we write: const arr = var arr2 = arr.splice(2, 0, 100, 101) Īt 2, this will add the numbers 100 and 101. As a result, we get: deletedItems // arr // Adding new elements This will delete one element, starting from index 3 and returns the deleted array. ![]() To remove elements from an array, we write: var deletedItems = arr.splice(3, 2) Using the splice function updates the original array.Ĭonsider the following array: const arr = Īrray.splice signature: arr.splice(fromIndex, itemsToDelete, item1ToAdd, item2ToAdd. Splice is used to modify the content of an array which includes removing elements, replacing existing elements, or even adding new elements to an array.
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