add elements to middle of array using splice

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Michelle
18 Jun 2017
1//we can add elements to middle of  array using splice
2
3const strings=['a','b','c','d']
4
5//go the 2nd index,remove 0 elements and then add 'alien' to it
6strings.splice(2,0,'alien')
7
8console.log(strings) //["a", "b", "alien", "c", "d"]
9
10//what is the time complexity ???
11//worst case is O(n). if we are adding to end of array then O(1)
12//in our example we added to the middle of array so O(n/2)=>O(n)
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