Posts by saurav_tb_pandey
@saurav_tb_pandey
Saurav Pandey
Full-Stack Developer (React · Node.js · AWS · SQL/NoSQL) | Open to New Roles
Posts by saurav_tb_pandey
What is Debouncing?
Debouncing is a programming practice that ensures a specific task is only executed after a set amount of time has passed since the last time it was triggered. Essentially, it waits for a "pause" in activity before performing an ...
Have you ever clicked a "Submit Payment" button on an online shop, watched the page freeze, and felt a sudden wave of panic? You wonder: Did it go through? Should I click it again, or will I be charged twice? The technology that protects you from thi...
The Magic of Web Hydration: How Static Pages Come to Life
Imagine clicking a button on a beautifully loaded website, only for absolutely nothing to happen. You click again, harder this time, but the page is frozen. A few seconds later, the page sud...
If you have ever built an application that talks to a database, you have used a database connection. A database is simply a structured storage system for digital information, and a connection is the secure, active pipeline established between your ap...
We've all been there: you pass an object literal or an array as a dependency to useMemo or useEffect, only to realize it triggers on every single render. Because JavaScript compares objects by reference rather than structure, {} never equals {}.
In...
No More Midnight Deploys: The Magic of Blue-Green Deployments
Imagine trying to upgrade the engine of a commercial airplane while it is mid-flight with passengers on board. In the software world, engineering teams face a similar challenge every day...
What is the Circuit Breaker Pattern?
The Circuit Breaker pattern is a software design safety mechanism used to prevent an application from repeatedly trying to execute an operation that is highly likely to fail. Instead of wasting valuable time and...
What is Database Indexing?
Database indexing is a technique used by software systems to speed up the retrieval of data from a database table. By creating a separate, organized pointer structure, the database can locate specific records without havi...
What is Throttling?
Throttling is a technique used in programming to limit how often a specific function can run over a given period of time. Instead of letting an action trigger repeatedly and continuously, throttling enforces a maximum execution ...
If you have ever built a server-rendered React application using Next.js or Remix, you know the nightmare of client-server hydration mismatch errors. One of the most common offenders is state synchronization with browser storage—especially cookies.
...
Have you ever wondered how software remembers your preferences even after a process seems to have finished? In the world of programming, this magic is often performed by a core concept known as a closure.
What is a Closure?
A closure is a fundament...
What is the Circuit Breaker Pattern?
The Circuit Breaker Pattern is an architectural design pattern used in software development to detect failures and encapsulate the logic of preventing a failure from cascading throughout a system. It works by wr...
Picture-in-Picture PiP has historically been limited to video elements. If you wanted to build a floating music player, a persistent chat widget, or an interactive pomodoro timer that stayed on top of other windows, you were out of luck.
That chang...
If you have ever used an online app to transfer money, buy a concert ticket, or update your profile, you have relied on a database. Behind the scenes, databases must process millions of instructions without making mistakes, even if the power suddenly...
Have you ever wondered how typing a few letters into your browser magically brings up your favorite website in milliseconds? This seamless connection is powered by a vital background process called DNS resolution.
What is DNS Resolution?
DNS Domain ...
Cross-Origin Resource Sharing CORS is a vital browser security mechanism that regulates how a website running in a user's browser is allowed to interact with servers located on entirely different domains. By default, web browsers strictly enforce a r...
Imagine opening a webpage and having to wait for every single image, video, and script to download before you can read a single line of text. Lazy loading is a web development design pattern that solves this problem by delaying the download of non-es...
What is a Content Security Policy CSP?
At its core, a Content Security Policy CSP is a security standard implemented by web browsers to detect and mitigate specific types of web-based attacks, most notably Cross-Site Scripting XSS and data injectio...
Rate limiting is a critical architectural pattern that controls how often a user or a computer program can send requests to a server. Think of a request as any action that requires a server to do work, such as loading a webpage, submitting a login fo...
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