title | tags |
---|---|
tail |
array,beginner |
Returns all elements in an array except for the first one.
- Return
Array.prototype.slice(1)
if the array'slength
is more than1
, otherwise, return the whole array.
const tail = arr => (arr.length > 1 ? arr.slice(1) : arr);
tail([1, 2, 3]); // [2,3]
tail([1]); // [1]