Welcome to the JavaScript Q&A Network

Discover clear, example-based answers to real JavaScript challenges. From functions, arrays, and DOM manipulation to ES6+ syntax and async programming, every response is written to help you understand how and why things work. Whether you’re building interactive sites or learning core logic, these Q&As make JavaScript easier and more powerful.

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How does localStorage differ from sessionStorage in JavaScript?

Asked on Tuesday, Aug 05, 2025

LocalStorage and sessionStorage are both part of the Web Storage API, used to store data on the client side. The key difference lies in their lifespan and scope. // Storing data in localStorage localS…

How do I work with forms using JavaScript?

Asked on Monday, Aug 04, 2025

To work with forms using JavaScript, you can manipulate form elements, validate input, and handle form submissions. Here's a basic example of handling a form submission and preventing the default beha…

What is the difference between innerHTML and textContent in JavaScript?

Asked on Sunday, Aug 03, 2025

InnerHTML and textContent are both properties used to manipulate the content of HTML elements, but they serve different purposes. Here's a brief explanation and example: const element = document.getEl…

How can I manipulate the DOM using JavaScript?

Asked on Saturday, Aug 02, 2025

To manipulate the DOM using JavaScript, you can use various methods provided by the Document Object Model (DOM) API. Here's a simple example demonstrating how to change the text content of an HTML ele…

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Core Web Performance Q&A