how to find the last number in an array using react js code example

Example 1: Javascript get last item in array

var colors = ["red","blue","green"];
var green = colors[colors.length - 1]; //get last item in the array

Example 2: javascript take last element of array

let array = [1,2,3,4,5];
let lastElement = array.pop();

// array -> [1,2,3,4];
// lastElement = 5;