how i get last item in array with javascript code example

Example 1: js get last array element

const array = [1, 2, 3, 4]
const lastArrayElement = array[array.length - 1]

Example 2: how to select last element in a array

if (loc_array[loc_array.length - 1] === 'index.html') {
   // do something
} else {
   // something else karunakar
}