Author: Arunangshu Das

In today’s dynamic tech environment, businesses and developers are constantly seeking ways to optimize application performance while reducing costs. Serverless computing has become a game-changer in this regard. AWS Lambda, one of the flagship offerings of Amazon Web Services, pairs exceptionally well with Node.js for efficient, scalable, and cost-effective deployments. What is Serverless Computing? Serverless computing eliminates the need for traditional server management. Developers only focus on writing code while the cloud provider handles server provisioning, scaling, and maintenance. In a serverless model, you only pay for the compute time your code uses, making it an attractive option for applications…

Node.js has become one of the most popular platforms for building scalable and efficient web applications. When deploying a Node.js app to AWS EC2, ensuring stability, security, and scalability is paramount. 1. Choose the Right EC2 Instance The foundation of a successful deployment is selecting the appropriate EC2 instance. Consider the following factors: Instance Type: Use T-series instances (e.g., t3.micro) for development and testing. For production, M-series or C-series (e.g., m5.large, c5.xlarge) are better suited for applications requiring higher CPU and memory capacity.Autoscaling: Ensure the instance type supports AWS Auto Scaling for handling traffic spikes efficiently.Region: Deploy in a region…

When developing modern web applications, performance and scalability often sit at the top of the priority list. One tool that can dramatically enhance both is Redis—a lightning-fast, in-memory data store. Combined with Node.js, Redis is a powerhouse for building efficient applications that handle high traffic without breaking a sweat. Why Caching Matters Caching is a mechanism for temporarily storing data to serve future requests faster. Instead of processing a database query or performing a computation repeatedly, a cache allows you to reuse previously retrieved or computed results. This results in: Reduced Latency: Quick access to data, enhancing user experience.Lowered Server…

Efficient memory management is a cornerstone of robust software development, and Node.js is no exception. As a developer, understanding how Node.js manages memory and performs garbage collection can help you write scalable, efficient code while avoiding common pitfalls like memory leaks. Memory Structure in Node.js Node.js runs on the V8 JavaScript engine, the same engine that powers Google Chrome. Memory in V8 is divided into several sections: 1. Heap The heap is where dynamic objects are allocated. It includes: Young Generation: Holds short-lived objects. The garbage collector frequently cleans this section.Old Generation: Stores long-lived objects. Garbage collection here is less…

Performance is a crucial aspect of any Node.js application. With the asynchronous and non-blocking nature of Node.js, it is easy to scale applications to handle numerous requests—but this scalability can come at a cost if performance bottlenecks go unnoticed. Benchmarking is the process of measuring and analyzing application performance to identify and mitigate these bottlenecks. What is Benchmarking? Benchmarking involves running a series of tests and analyses to measure the performance of your application under different conditions. By focusing on response time, throughput, CPU utilization, and memory usage, you can determine what areas of your application need improvement. Key metrics…

In today’s era of globally connected applications, designing APIs that can handle millions of concurrent users is no longer a luxury; it’s a necessity. Node.js, with its non-blocking I/O and scalability features, is a powerful choice for building such APIs. Why Choose Node.js for High-Concurrency APIs? Non-blocking I/O: Node.js’s event-driven model makes it perfect for handling multiple concurrent requests without thread-blocking.High Performance: The V8 engine compiles JavaScript to machine code, ensuring speedy execution.Rich Ecosystem: A large npm library simplifies building and scaling applications. Architecture Planning A scalable architecture is foundational for managing high traffic. Consider the following: 1. Microservices Break…

Introduction to VGG Architecture In the ever-evolving field of deep learning, convolutional neural networks (CNNs) have proven indispensable for tasks like image recognition, object detection, and video analysis. Among the many groundbreaking architectures, the VGG network, introduced by the Visual Geometry Group at the University of Oxford in 2014, stands out as a milestone. VGG demonstrated that depth and simplicity in network design could achieve remarkable performance. This article dives into the architecture, its unique contributions, and its transformative impact on deep learning. Origins of VGG The VGG network was proposed in the seminal paper “Very Deep Convolutional Networks for…

In today’s mobile-first world, ensuring that your website works seamlessly across all devices is crucial. Responsive web design isn’t just a buzzword—it’s a necessity. Chrome DevTools, a powerful suite of developer tools built into the Google Chrome browser, makes testing and optimizing for responsive design incredibly efficient. 1. Accessing Device Mode Open Chrome DevTools (Ctrl+Shift+I on Windows/Linux, Cmd+Option+I on macOS). Click on the Toggle Device Toolbar icon (or press Ctrl+Shift+M/Cmd+Shift+M). This enters the device mode, allowing you to emulate different devices like smartphones, tablets, and desktops. Pro Tip: Customize the device list to include specific devices you’re targeting. 2. Adding…

In today’s fast-paced digital world, website performance is critical. A slow website can lead to higher bounce rates, lower search engine rankings, and frustrated users. Luckily, Chrome DevTools offers a powerful suite of features to identify and resolve performance bottlenecks. 1. Audit Your Website with Lighthouse The Lighthouse tool in Chrome DevTools provides a comprehensive performance report, including metrics like First Contentful Paint (FCP), Time to Interactive (TTI), and Largest Contentful Paint (LCP). Steps: Open DevTools (Ctrl+Shift+I or Cmd+Option+I on Mac). Navigate to the Lighthouse tab. Choose the performance category and generate a report. Key Actions: Address issues like render-blocking…

Chrome DevTools is a powerhouse for developers, packed with tools to debug, test, and optimize code. But even seasoned developers sometimes miss out on time-saving shortcuts that can make their workflow significantly more efficient. 1. Quick Access to DevTools Shortcut: Ctrl + Shift + I (Windows/Linux) or Cmd + Option + I (Mac) Instantly open Chrome DevTools without navigating through menus. Pair it with Ctrl + Shift + J (Windows/Linux) or Cmd + Option + J (Mac) to jump directly to the Console tab. 2. Element Selection on the Fly Shortcut: Ctrl + Shift + C (Windows/Linux) or Cmd +…