@satpalsinh

NodeJS

4d ago · 4 min read · Why Did Node.js Even Need to Exist? You already know JavaScript. You know it runs in the browser. The entire purpose was simple make web pages respond to user actions. But have you ever think why does

Array Flatten in JavaScript

Mar 26 · 2 min read · What Exactly Are Nested Arrays? A nested array (or a multi-dimensional array) is simply an array that contains other arrays as its elements. Think of a standard array as a single-story egg carton. A n

Error Handling in JavaScript

Mar 26 · 5 min read · Every program makes assumptions. It assumes the network is available. It assumes the user gave you a valid input. It assumes the file exists. It assumes the API response has the shape you expect. Most

Async/Await in JavaScript

Mar 26 · 3 min read · You've met promises. You understand .then(). You've chained a few calls together and it mostly worked. But then you needed to do three async things in sequence, and you ended up with something like th

JavaScript Promises Explained for Beginners

Mar 26 · 5 min read · What problem do promises solve? JavaScript is single-threaded. It runs one piece of code at a time, which means when you perform a slow operation, like fetching data from a server, reading a file, or