JavaScript is a powerful programming language that adds interactivity to websites. Here's a quick guide to get you started:
🧩 Basic Syntax
- Use
console.log()
to output messages - Variables are declared with
let
orconst
let message = "Hello, World!"; const PI = 3.14159;
📦 Data Types
- Primitive types:
string
,number
,boolean
,null
,undefined
- Objects: Arrays, Dates, Functions
let numbers = [1, 2, 3]; // Array let person = { name: "Alice", age: 25 }; // Object
🔁 Control Structures
- Conditional statements:
if
,else if
,else
- Loops:
for
,while
,do...while
if (x > 10) { console.log("x is greater than 10"); } else { console.log("x is 10 or less"); }
🌐 Next Steps
Want to dive deeper into JavaScript? Explore our JavaScript Frameworks Guide to learn about popular libraries like React and Vue. 📚