when push to array javascript it delete the last thing added code example

Example 1: javascript remove last element from array

var colors = ["red","blue","green"];
colors.pop();

Example 2: how to remove last element in js

var array = [1, 2, 3, 4, 5, 6];
array.pop();
console.log(array);
//Output in console section:
//[1, 2, 3, 4, 5]