Check out example codes for "add elements to middle of array using splice". It will help you in understanding the concepts better.
Code Example 1
//we can add elements to middle of array using splice const strings=['a','b','c','d'] //go the 2nd index,remove 0 elements and then add 'alien' to it strings.splice(2,0,'alien') console.log(strings) //["a", "b", "alien", "c", "d"] //what is the time complexity ??? //worst case is O(n). if we are adding to end of array then O(1) //in our example we added to the middle of array so O(n/2)=>O(n)
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