🚀 JavaScript in a Nutshell — My Quick Takeaway!

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As I delve deeper into web development, I’ve been exploring more about JavaScript and understanding its intricacies. It’s amazing how such a powerful language is the foundation of interactive web applications. Although much remains to be understood, I wanted to share some fundamental concepts and insights that have been most important in my learning so far, along with some examples to illustrate the concepts better.

1. Variables & Data Types — The Building Blocks of JavaScript

Variables and data types are basic at the very core of every programming language. In JavaScript, we have three primary methods for declaring variables:

let name = "John"; // This can be changed
const age = 30;    // This cannot be changed
var isActive = true; // Older way of declaring variables

JavaScript supports several key types, such as:

• Primitive types: Numbers, Strings, Booleans, null, undefined, Symbols and BigInt.
• Complex types: Arrays and Objects.

Example of Array and Object:

let fruits = ['apple', 'banana', 'cherry']; // Array
let person = { name: "Alice", age: 25 };    // Object

2. Functions — Writing Reusable…