JSFiddle - React, Tailwind, and code Playground

by Edward Tanguay

JavaScript

const numbers = [3, 2, 5];
const numbers2 = [...numbers];
const numbers3 = numbers.concat(55);
numbers[0] = 10;
console.log(numbers, numbers2, numbers3);

        const person = {
            firstName: 'Robert',
            lastName: 'Geiss'
        }
        const person2 = person;
        person.firstName = 'Paula';
        console.log(person, person2);