09.js

// 🔁 Type Conversion (Manual)

// String to Number
let str = "123";
let num = Number(str);     // 123
console.log(typeof num);   // "number"

// Number to String
let n = 456;
let str2 = String(n);      // "456"
console.log(typeof str2);  // "string"

// Boolean to Number
console.log(Number(true));  // 1
console.log(Number(false)); // 0

// Number to Boolean
console.log(Boolean(0));    // false
console.log(Boolean(123));  // true

// 🔁 Type Coercion (Automatic)
console.log("5" + 2);   // "52" → string + number = string
console.log("5" - 2);   // 3 → string converted to number
console.log("5" * "2"); // 10 → both converted to number
console.log(1 + true);  // 2 → true is 1