Welcome to the JavaScript basics tutorial! Whether you're a beginner or just refreshing your knowledge, this guide will cover core concepts to build a strong foundation.

What is JavaScript? 🔍

JavaScript is a scripting language that runs in web browsers, enabling dynamic content and interactivity on websites. It's essential for front-end development and increasingly used for back-end via Node.js.

Key Concepts 📚

  • Variables: Use let, const, or var to store data 

    let message = "Hello, world!";
const PI = 3.14;
    JavaScript Variables

  • Data Types: Includes numbers, strings, booleans, arrays, and objects

    • Primitive: 5, "text", true
    • Complex: [1,2,3], { key: "value" }
    Data Types in JavaScript

  • Functions: Reusable blocks of code 

    function greet(name) {
  return "Welcome, " + name + "!";
}
    JavaScript Functions

Practice Tips 💡

  1. Start with JavaScript Syntax for basic structure
  2. Use online editors like JSFiddle to test code snippets
  3. Explore JavaScript Objects for advanced patterns

Let me know if you'd like to dive deeper into any topic! 🌐