1. String
let myName = "rookie";
let hello = 'Hello ${myName}!'
2. Number
let num = 123;
let decimal = 1.45;
3.Boolean
let checked = true;
let unchecked = false;
4. Undefinded
let undef;
let obj = { abc : 123 };
console.log(undef); // undefined
console.log(obj.abc); // 123
console.log(obj.xyz); // undefined
5. Null
let empty = null;
console.log(empty); // null
6. Object
let user = {
name: rookie,
age: 20,
isValid: true
};
console.log(user.name); // OROSY
console.log(user.age); // 65
console.log(user.isValid); // true
7. Array
let fruits = ['Apple', 'Banana', 'Orange'];
console.log[fruits(0)]; // Apple
console.log[fruits(1)]; // Banana
console.log[fruits(2)]; // Orange