Synchronous vs Asynchronous JavaScript: How the Language Actually Executes CodeJavaScript runs one thing at a time (synchronous by default). Asynchronous behavior lets it hand off slow operations — like API calls or timers — and continue running other code instead of freezing. UApr 22, 2026·10 min read
Setting up Express.js with TypeScriptAudience: Developers familiar with Node.js basics. No prior TypeScript experience required. TypeScript adds static typing and better tooling to Express. This guide sets up a production-ready Express +Apr 9, 2026·5 min read
Error Handling in JavaScript: Try, Catch, FinallyAudience: developers with basic JavaScript knowledge — functions, callbacks, and async/await aren't assumed, but you should know what a function call is. TL;DR: JavaScript errors don't have to crash yApr 8, 2026·5 min read
The new Keyword in JavaScript: What Actually HappensProblem You've written constructor functions. You've used new. But if someone asked you to explain what JavaScript does internally when new runs — step by step — could you? Most developers can't, and Apr 6, 2026·5 min read
Template Literals in JavaScript: Write Strings Like a HumanTemplate literals replace messy string concatenation with readable, expressive syntax. They support embedded expressions, multi-line strings, and tagged templates — all with zero libraries. If you're Apr 5, 2026·8 min read
String Polyfills and Common Interview Methods in JavaScript"I thought I knew strings. Then an interview asked me to implement .includes() from scratch — and I froze." 🌍 Why This Problem Matters Here's the thing: JavaScript is everywhere. But JavaScript engMar 21, 2026·11 min read
Callbacks in JavaScript: Why They ExistWritten by Saurabh Prajapati Software Engineer @ IBM India Software Lab 🔥 Hook — The Moment That Confused Me I remember the first time I saw this in someone's code: fs.readFile('data.txt', functionMar 20, 2026·8 min read
