30-seconds-of-code/last-of-list.md at 357a387aa4e44e8588553895d526e76b164ee3c9

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iamsoorena d865664102 there is no need to make another array to return the last element. the previous implementation was far more slower that simply returning the last index.

2017-12-17 02:15:50 +03:30

Use arr.length - 1 to compute index of the last element of the given array and returning it.

const last = arr => arr[arr.length - 1];
// last([1,2,3]) -> 3