// Create a variable.js file and declare variables and assign string, boolean, undefined and null data types let newStudentName = "Mujeeb ur Rahman"; let learning = true; let newAge = 25; let score; let grad = null; let firstVariable; let secondVariable; let thirdVariable; let fourthVariable; let fifthVariable = "fifthVariable"; let sixthVariable = 6; let seventhVariable = true; let eighthVariable = 8.0; let myFirstName = "Mujeeb ur", myLastName = "Rahman", materialStatus = "single", myCountry = "Pakistan", myAge = 30; let yourAge = 25; console.log(`I am ${myAge} years old`); console.log(`You are ${yourAge} years old`);