task2.js

let number = 42;                    
let name = "Hello";                
let isStudent = true;             
let nothing = null;               
let notDefined;                
let obj = { key: "value" };       
let symbol = Symbol("id");       

console.log(typeof number);       
console.log(typeof name);        
console.log(typeof isStudent);    
console.log(typeof nothing);      
console.log(typeof notDefined);   
console.log(typeof obj);       
console.log(typeof symbol);       

let strNum = "123";
let num1 = Number(strNum);         
console.log(num1 + 1);           

let num2 = 456;
let str1 = String(num2);           
console.log(str1 + "7");           

console.log("5" * 2);              
console.log("10" + 5);