Sanjeev Sharma articles - 32 total
CORS, Preflight Requests, and Common Cross-Origin Issues
If you've been developing web apps for a while, there's a 99% chance you've encountered a CORS issue...
Event Delegation Pattern
Event delegation is a design pattern in JavaScript used to efficiently handle events on multiple...
10 Backend Terms Every Frontend Developer Should Know
When a backend dev gives their update in the daily standup meeting, most frontend devs are clueless...
Event Flow: Bubbling & Capturing
This is post #7 of Frontend Interview Questions series. If you're looking to level up your...
Cookies, Local storage and Session storage
This is post #6 of Frontend Interview Questions series. If you're looking to level up your...
`this` in JavaScript Explained
This is question #5 of Frontend Interview Questions series. If you're looking to level up your...
Event Loop Explained
Another one among the popular frontend interview questions. It tests interviewees depth of knowledge...
What is JavaScript? One Definition to Cover It All.
This might or might not get asked in an Interview but trust me once you read this you'll understand...
Debouncing and Throttling
Another one among the popular frontend interview questions. It tests interviewees knowledge on JS,...
Understanding async and defer
This is one of the popular frontend interview questions. It tests interviewees knowledge on HTML, JS...
Introducing DEV AI: Your Tech Blogging Sidekick
This is a submission for the Cloudflare AI Challenge. What I Built Presenting DEV AI ✨,...
Introduction to NGINX
NGINX, pronounced as 'engine-x', is an open-source web server that is mainly used for Reverse proxy,...
Writing your first Unit Test in React
Hey 👋 Are you planning to add tests to your React codebase? You cannot find a good tutorial that...
JavaScript Design Patterns: A Beginner's Guide to Better Code
Hey 👋 It has been a few years now since I started coding professionally. I've always heard the term...
Setting Up Localization in your React App
Hey 👋 If your company(or product) is expanding into multiple geographies, Localization is one of the...
PaperDrop: Drop Anonymous Messages Wherever You Go
Overview of My Submission I built PaperDrop. An app that allows you to drop anonymous...
Adding Feature Flags in Your React Codebase
Hi 👋 🤔 Have you ever been in a situation where you wished you could launch a feature to a handful of...
Advance React Patterns: Render Props
Hi 👋 If you have been working with React for quite some time, you must be well versed in writing...
Real-time Updates: Polling, SSE and Web Sockets
Cover image by Martin Jaros on Unsplash. Hey 👋 If you are a junior or mid-level front-end developer...
Just Redux: The Complete Guide
Cover image by Josh Weirick on Unsplash. Hey! 👋 If you're a Front-end developer or aspiring to...
JavaScript: Debouncing & Throttling
Hey 👋 fellow front-end developers, Today I'll be sharing two important concepts for optimizing funct...
DSA 101: Hashing & Hash Tables
Hey, In this article, we'll be going over Hash Tables. This is a theoretical introduction to Hashing...
DSA 101: Matrix
Hey, This article is a refresher for algorithms. Since most of us hardly study any algorithms when...
I made a Climate Change News App
Hey, I've been working on a little news app for the past few weekends. It's a news app that only foc...
DOM Updates Like a Pro
Hi! This will be a small article but the performance impact on your app will be huge. I am assuming y...
Keeping your sanity with BEM CSS
Hi! So, you're working on a huge project? And you go crazy over css when it leaks? You find it hard t...
Understanding Recursion
Recursion is one of the most important concepts of programming paradigms. Most of your problems can b...
Break timer for Digital Well-being
Hello there! So I have been thinking of learning about Electron and Neumorphism for the last few wee...
call(), apply() and bind() in Javascript
Hi there! I'm back again with a new javascript tutorial. call(), bind() and apply() - you might have...
Useful JS array methods to level up your game - Part 2
Hi, again! In this article, I'll be sharing some array methods that are not so common but will surel...