array of last child code example

Example 1: javascript last element of array

let arr = ['a', 'b', 'c']
arr.slice(-1)[0] // returns last element in an array

Example 2: find last item in an array JS

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