Nasim Khan

I am software engineer at Oracle

JavaScript: Which of the Following is Not a Valid Way to Define a Variable?

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JavaScript (JS) is a lightweight, interpreted (or just-in-time compiled) programming language that supports first-class functions. It’s commonly used for adding interactivity to websites but also powers server-side environments like Node.js and applications such as Adobe Acrobat and Apache CouchDB. JavaScript follows a flexible, dynamic programming model. Variables in JavaScript can be declared using multiple keywords … Read more

Blink Tag HTML: A Hidden Gem of the Early Web

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Blink Tag HTML

Blink tag in HTML is one of the earliest, most iconic, and controversial elements in web history. While not widely used today, it represents a fascinating part of how the web evolved. Blink was never a part of official HTML standards, yet it played a visible role in how content was presented—literally blinking on screen … Read more

How to Use the Copyright Symbol in HTML: A Beginner’s Guide

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Copyright Symbol in HTML

The copyright symbol (©) is a legal marker used to assert ownership over content, indicating that it is protected under copyright law. In web development, adding this symbol helps demonstrate professionalism and reinforces that your content is not freely available for reuse. Overview In HTML, there are multiple ways to represent the copyright symbol. This … Read more

browser rendering optimization

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browser rendering optimization

Browser rendering optimization involves techniques to improve how web pages are processed and displayed, reducing load times and enhancing user experience. Here’s a concise overview based on current best practices: Key Concepts Browsers render web pages by parsing HTML, building the DOM and CSSOM, creating a render tree, performing layout calculations, and painting pixels to … Read more

css content-visibility property

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css content-visibility property

Key Points What is the content-visibility Property? The content-visibility property in CSS is a tool that decides whether a web page element’s content should be shown right away or later. It’s like telling your browser, “Don’t bother showing this part yet if it’s not visible to the user.” How Does It Work? This property can … Read more

Categories CSS

Web Bluetooth API Usage

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Web Bluetooth API Usage

Key Points Overview The Web Bluetooth API is a tool for web developers to make websites interact with Bluetooth devices, like smartwatches or home gadgets. It’s great for creating apps that work without needing to download software, but it’s still being developed, so not all browsers support it yet. How to Use It To get … Read more

How to Mask a Div with Another Div in CSS

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css mask div with another div

To mask a div with another div in CSS, the best approach is by using the mask-image property or clip-path. These CSS techniques allow you to control what part of a div is visible based on the shape or content of another div. This is particularly useful when you want to display content in an … Read more

Categories CSS

Java vs PHP: Choosing the Right Language for Your Development Needs

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Java vs PHP

Introduction Java and PHP are two of the most widely-used programming languages in web development. Each language offers unique advantages and is suited for different use cases. Whether you’re building enterprise-scale applications or lightweight websites, understanding the differences between Java and PHP is crucial for making informed technical decisions. This guide will help you explore … Read more

JavaScript API Calls – Guide

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JavaScript API Calls - Guide

JavaScript developers often work with various tools to handle HTTP requests efficiently. Whether using Fetch, XMLHttpRequest, Axios, or jQuery AJAX, each has its own way of making code more responsive and user-friendly. Using the Fetch API The Fetch API is a modern way to make asynchronous network requests in JavaScript. Here’s how to use it effectively: … Read more

How to Fix Vite Import and NPM Installation Issues in React.js

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How to Fix Vite Import and NPM Installation Issues in React.js

When working with a React.js project using Vite, you may encounter errors related to package imports or npm installations. One common issue is the failure to resolve an imported package, such as browser-image-compression, followed by npm installation errors like EPERM: operation not permitted or version mismatches. In this article, we will explore the causes of … Read more