JSFiddle - React, Tailwind, and code Playground

JavaScript

console.log('Init');
var arr = []; // Array of objects
var obj = {}; // Dummy object

// Fill array
arr.push(obj);
arr.push(obj);
arr.push(obj);

// Log
console.log('Before pop: ');
console.log(arr);
console.log('Length: ' + arr.length);

// Pop array
arr.pop();

// Log
console.log('After pop: ');
console.log(arr);
console.log('Length: ' + arr.length);