JavaScript Concepts

Data Types

JavaScript supports several data types, categorized as:

Primitive Types: Include strings, numbers, booleans, null, undefined, and symbols.
Non-Primitive Types: Include objects and arrays, which can store collections of data.

Examples:


let age = 25;                     // Number
const birthYear = 1999;          // Number
var name = "goku";                // String

let colors = ["red", "green", "blue"]; // Array
let person = { name: "John", age: 30 }; // Object

Accessing Data:


console.log(colors[0]); // Output: red
console.log(person['name']); // Output: John