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Introduction to JavaScript Welcome to Ienex! Today we’re starting with one of the most important and widely used programming languages on the web: JavaScript . Whether you’re just beginning your programming journey or brushing up on fundamentals, this guide will help you understand what JavaScript is, what it can do, and why it remains essential. What You Should Know First Before diving into JavaScript, you should already be familiar with: HTML (HyperText Markup Language) CSS (Cascading Style Sheets) These two are the foundation of web pages. JavaScript builds on top of them to make pages dynamic and interactive. What is JavaScript? JavaScript is a scripting language that was invented to bring interactivity to static HTML pages. It runs directly in all major browsers (Chrome, Firefox, Safari, Edge, Opera). It is embedded within HTML and runs instantly—no extra tools or compilers required. It’s free to use, with no license needed. Think of JavaScript as th...