split():Creating array by splitting string variable.splice():Add replace remove elements from an array using splice().unshift():Adding elements to array using unshift().push():Adding elements to array using push().shift():Removeing first element of an array using shift().pop():Removeing last element of an array by using pop().reverse():Reversing the elements of an array.length:Length property to get the total number of elements in an array.sort():Sorting of elements of an array using function.join():Displaying elements of an array using join() function.Displaying elements of an array by looping through.JavaScript Home document window String Array Date & Time Form Validation Event handling Math basic loop If start_index + array.length If start_indexIf delete_count= array.length, none of the elements will be removed, and new elements (if passed as arguments) will be added to the end of the array.The same result occurs in the case whenĭelete_count >= (array.length - start_index). If only the start_index is passed as a parameter, the splice() method will start removing all the elements from the start_index to the end of the array.While the parameters delete_count and elements to be added are optional, the start_index is a necessary parameter. The splice in JavaScript removes the existing elements and adds newer ones to the array.

The splice method in javascript is supported by all the browsers such as Chrome, Edge, Safari, Opera etc. In the above example, you can observe that the delete_count was 1, so the element at index 0 was removed, and new elements X, Y, Z were added. The starting point for the new elements to be added will be the start_index itself. In the coming example, we'll remove two elements from index 3 (start_index) and add two elements. Note: If no element has been removed, an empty array will be returned. The splice in JavaScript returns an array containing all the elements that have been removed from the original array.

Return Value of Array splice() in Javascript If it has not been specified, then the splice method only removes the existing elements from the array and doesn't add any new elements. It denotes the elements that will be added right from the start_index position.

element1, element2., elementN (optional): Since Arrays in JavaScript are objects, it can accept elements of different data types.

If not needed, the value delete_count should be 0 because if delete_count is ignored, all the elements starting from start_index are removed. The removal begins at the start_index and goes up to the number of elements as specified by the parameter, delete_count.

delete_count (optional): delete_count is an integer that denotes the number of elements to be removed from the array.

When it is negative, the counting would start from the end of the array starting with -1. start_index is a mandatory parameter that begins at the 0th index from the beginning of the array when it is specified to be non-negative. Start_index (required): start_index is an integer that shows the index from where the modification would take place. The splice() method accepts three parameters: View All Parameters of Array splice() in Javascript

Js splice arrray