Push and Pop
Adding or removing data to the array using these two operations is always constant.
So this has a BigO of 1 "O()".
Shift and Unshift
Shifting and Unshifting always will take its own time. As the array has to reindex itself after doing this. So the complexity increases with the no of items
So this has a BigO of N "O(N)".
Concat
Its a simple operation of merging two arrays into one but as we know that indexing takes its own time. So this is also the same as shift.
So this has a BigO of N "O(N)".
Slice
Slice returns the copy of an array from starting index to the ending index as the number of elements grows this'll also grow based on the size of the array
So this has a BigO of N "O(N)".
Splice
With splice we can insert, remove or modify the elements in an array using index. But at the end we are left with indexing. So even this operation grows with the number of elements
So this has a BigO of N "O(N)".
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