get last element of array in algebra code example

Example 1: how to get last element of array

return array[array.length - 1];

Example 2: get the last item in an array

let array = [0, 1, 2, 3, 4, 5, 6, 7] 
console.log(array.slice(-1));
>>>[7]
console.log(array.slice(-2));
>>>[6, 7]
console.log(array.slice(-3));
>>>[5, 6, 7]