JavaScript Basics for Beginners

JavaScript is one of the most important programming languages in web development. It makes websites interactive and dynamic. While HTML creates the structure and CSS handles the design, JavaScript controls the behavior of a website. If you want to become a frontend or fullstack developer, learning JavaScript is a must. 1. What is JavaScript? JavaScript is a programming language used to: Make websites interactive Handle user actions (clicks, typing, scrolling) Update content without refreshing the page Communicate with servers For example: Showing a popup when a button is clicked Validating a form before submission Creating sliders, dropdowns, and animations 2. Variables Variables are used to store data. let name = "John"; const age = 25; let can be changed later const cannot be changed var older way (not recommended today) 3. Data Types JavaScript has different types of data: String = "Hello" Number = 10, 3.14 Boolean = true or false Array = ["apple", "banana"] Object = { name: "John",