Day 3: Data Types: String, Number, Boolean, Null, Undefined, Object

 // Numbers:

let length = 16;
let weight = 7.5;

// Strings:
let color = "Yellow";
let lastName = "Johnson";

// Booleans
let x = true;
let y = false;

// Object:
const person = {firstName:"John", lastName:"Doe"};

// Array object:
const cars = ["Saab", "Volvo", "BMW"];

// Date object:
const date = new Date("2022-03-25");

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Roadmap

Day 1: Variables: var, let, const

Day 2: Operators: Arithmetic, Assignment, Comparison, Logical