UPUtpal Patiinutpalthedev.hashnode.dev·Aug 24, 2025 · 6 min readDeep Dive: How a Node.js HTTP Server Handles Many Concurrent RequestsNode.js achieves concurrency by decoupling “doing work” from “waiting for I/O.” Even though JavaScript runs on a single call stack, the runtime orchestrates thousands of overlapping request lifecycles via the event loop, libuv, and a set of specializ...00
UPUtpal Patiinutpalthedev.hashnode.dev·Jul 8, 2021 · 7 min readIterators and Generators in JavaScript (Part - 2)Once we start thinking of our data as flows (where we can pick of an element one by one) we rethink how we produce those flows. Javascript now lets us produce the flows using a function to set what individual element will be returned next. We need to...00
UPUtpal Patiinutpalthedev.hashnode.dev·Jul 7, 2021 · 21 min readIterators and Generators in JavaScript (Part - 1)When we run, or we write and run code, what we're typically doing is taking data, storing it, and then functionality, that we then apply to that data. Even as simple as I have a score for a player and I increase that score. We call our live data that...00
UPUtpal Patiinutpalthedev.hashnode.dev·Jul 5, 2021 · 3 min readHow promise executes behind the scene in JavaScriptPromises are two-pronged, they do two things. One is outside JavaScript and another in the web browser. They used to spin up some background web browser features. It's a new type of facade. In simultaneously, they do something in JavaScript. In JavaS...04AKSS
UPUtpal Patiinutpalthedev.hashnode.dev·Jan 4, 2021 · 10 min readJAVASCRIPT VALUES,TYPES AND OPERATORSData is the most important component in the computer used to define information and stored as sequence of bits. Bits define as zero's and one's. How to express a number in bits? Lets take a number 15, 00001111 1286432168421 So, 00001111 is th...00
