August 2025

What are data attributes?

August 16, 2025

In HTML, data attributes are custom attributes that let you store extra information on standard HTML elements without using non-standard...

Difference between innerHTML, innerText, and textContent.

August 16, 2025

These three properties in JavaScript are often confused because they deal with reading and writing content inside an element, but...

How do you prevent default behavior of events?

August 16, 2025

In JavaScript, you can prevent the default behavior of an event by using the event.preventDefault() method. This is useful when...

What is the difference between bubbling and capturing?

August 16, 2025

In JavaScript, when an event (like a click) happens on an element, it doesn’t just stay on that element. Instead,...

Explain event delegation.

August 16, 2025

Event delegation is a technique in JavaScript where instead of attaching event listeners to individual child elements, you attach a...

How do you select elements in DOM?

August 16, 2025

In the DOM (Document Object Model), we can select elements using different methods provided by JavaScript. Here are the most...

Difference between HTMLCollection and NodeList.

August 16, 2025

👍 Let’s break down the difference between HTMLCollection and NodeList in JavaScript DOM: 1. What they are 2. Live vs...

What is the DOM?

August 16, 2025

The DOM (Document Object Model) is a programming interface for web documents. In simple terms: Example If you have an...

Explain async/await in JavaScript.

August 16, 2025

🔹 1. What is async/await? 🔹 2. The async keyword Even though return "Hello!" is not explicitly wrapped in a...

What is a promise?

August 16, 2025

In JavaScript, a Promise is an object that represents the eventual completion (or failure) of an asynchronous operation and its...