2025

Let’s break down the difference between an array and an object in JavaScript (and generally in programming): 🔹 Array 🔹...

🔹 What is Object.create()? Object.create() is a built-in JavaScript method that creates a new object and sets its prototype to...

1. Object.seal() ✅ Example: 2. Object.freeze() ✅ Example: Key Difference Table Feature Object.seal() Object.freeze() Add new properties ❌ Not allowed...

1. Object Literal An object literal is the simplest way to create an object in JavaScript.You directly define the object...

In JavaScript, getters and setters are special methods that allow you to define how properties of an object are accessed...

1. Adding Properties You can add new properties to an object in multiple ways: ✅ Dot notation ✅ Bracket notation...

Prototype In JavaScript, every object has an internal hidden property called [[Prototype]] (often accessed using __proto__ or through Object.getPrototypeOf()). 👉...

Let’s break down this keyword in JavaScript step by step, because it behaves differently depending on where and how it...

In JavaScript (and in general OOP), 👉 Objects are collections of data (properties) and behavior (methods). 1. Object Properties ✅...

In JavaScript, an object is a collection of key-value pairs (properties), where keys are strings (or Symbols) and values can...