// Declaring different variables of different data types
let firstName = "Ashu"; // first name of a person
let lastName = "Baghel"; // last name of a person
let country = "India"; // country
let city = "Agra"; // capital city
let age = 21; // age in years
let isMarried = false;

// Declaring variables with number values
const gravity = 9.81; // earth gravity  in m/s2
const boilingPoint = 100; // water boiling point, temperature in oC
const PI = 3.14; // geometrical constant

// Variables can also be declaring in one line separated by comma
let name = "Ashu", //name of a person
  job = "teacher",
  live = "India"; 'Finland'