The browser storage localStorage is not available. Either your browser does not support it or you have disabled it or the maximum memory size is exceeded. Without localStorage your solutions will not be stored.

Array: length

Like strings, arrays have the property length. Here it returns the number of elements in the array:
let languages = [];
let len0 = languages.length;
languages[0] = 'C';
let len1 = languages.length;
languages[1] = 'C++';
let len2 = languages.length;
The empty array contains no elements. len0 is 0. Now we fill the array step by step. len1 is 1 and len2 is 2.

Exercise

Write a function getLastElement that takes an array and returns the last element of the array.

Example: getLastElement([1, 2]) should return 2.
Determine the index of the last element with the length property. Take into account that the first element in the array has the index 0.
function getLastElement(anArray) {
  let lastIndex = anArray.length - 1;
  return anArray[lastIndex];
}

loving