Approach 1: In this approach, the startIndex(From where to start removing the elements) and count(Number of elements to remove) are the variables. If the count is not passed then treat it as 1. Run a while loop till the count is greater than 0 and start removing the desired elements and push it in a new array. Return this new array after the loop ends.
Approach 2: In this approach, slice() method is used to get the removed elements and this method is also used to get the output array. This approach also takes argument to insert the new elements to the array.
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