Tag: javascript

Monkey Patching in Node.js? Update code at runtime in Node.js

Introduction In this blog post, we will look at what Monkey patching is, what are the pros and cons of it, and also an example that illustrates this technique. What is Monkey patching? Monkey patching is a technique for dynamic modification of any module or function. By using Monkey patching one can add or modify

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Boosting Web Performance with HTTP/2 in Node.js: Exploring the Benefits and Implementation

Introduction HTTP/2 is a major revision of the HTTP network protocol used by the World Wide Web. It is designed to improve the performance and efficiency of web communication. HTTP/2 was developed by the Internet Engineering Task Force (IETF) as an evolution of the earlier HTTP/1.1 protocol. Key features and improvements of HTTP/2 include: Certainly!

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Remote Code Injection (RCI) attack in Node.js

Introduction Remote code injection attacks are a type of security vulnerability in which an attacker is able to inject and execute malicious code on a remote system. In Node.js, remote code injection attacks can occur when user input is not properly validated or sanitized before being executed as code. Here is an example of how

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Preventing Stored XSS Attacks in Node.js: Best Practices and Countermeasures

Introduction A stored XSS (Cross-Site Scripting) attack in a Node.js application occurs when user-supplied input containing malicious scripts or HTML code is stored on the server and later displayed to other users without proper sanitization or validation. This can lead to the execution of the injected scripts on other users’ browsers, potentially compromising their accounts

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How to Troubleshoot and Resolve Web Application Performance Issues

Introduction Web application performance is essential to the success of any business. Slow applications can frustrate customers, lowering customer satisfaction and loyalty. In addition, slow applications can also impact a company’s bottom line by costing businesses money in lost sales and extra server costs. This blog post provides an overview of some common problems that

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Error Handling in Node.js: Best Practices and Common Strategies

Introduction Error handling is a critical aspect of building robust and reliable Node.js applications. Effective error handling helps identify and address issues, enhances application stability, and improves the overall user experience. In this blog, we will explore best practices and common strategies for error handling in Node.js. We will discuss error types, error propagation, synchronous

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Node.js Interview Questions and Answers

Node.js is the most popular server-side JavaScript platform, used by big companies such as Netflix, LinkedIn, PayPal, and Walmart. If you’re applying for a job involving Node.js, it’s important to be prepared with a strong understanding of the basics. In this blog post, we’ll cover some common Node.js interview questions and answers that can help

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Advantages of Node.js

Introduction Node.js is an open-source, cross-platform, server-side runtime environment built on the V8 engine of Google Chrome. It uses an event-driven, non-blocking I/O model, which makes it lightweight and efficient, suitable for building fast and scalable network applications. Node.js allows developers to use JavaScript on both the front-end and back-end, enabling a seamless and efficient

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How to create a video streaming server in Node.js?

Introduction: A video streaming server is a specialized server that delivers video content over the internet to viewers in real-time. It is responsible for handling the storage, encoding, and distribution of video files to multiple clients simultaneously. When a user requests to watch a video, the video streaming server retrieves the video file from its

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Brief on HTTP Status codes

Introduction HTTP (Hypertext Transfer Protocol) response codes are three-digit numbers that are returned by a server to indicate the status of a client’s request. Each response code provides information about the outcome of the request. Here’s an overview of some commonly encountered HTTP response codes: 1xx Informational 2xx Success 3xx Redirection 4xx Client Errors 5xx

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