This is a playground to test JavaScript. It runs a completely standard copy of Node.js on a virtual server created just for you. Every one of npm’s 300,000+ packages are pre-installed, so try it out:
const { dd } = require('dumper.js');
const users = [
{ user: 'barney', age: 36, active: true, createdAt: new Date(), getAge: () => this.age },
{ user: 'fred', age: 40, active: false, createdAt: new Date(), getAge: () => this.age },
{ user: 'pebbles', age: 1, active: true, createdAt: new Date(), getAge: () => this.age }
];
dd(users);
// Above variable will be printed
console.log('this will never be called');