@satpalsinh

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

String Polyfills in JavaScript

Mar 26 · 4 min read · What are string methods? In JavaScript, strings come with a powerful set of built-in methods functions attached to every string value that let you search, transform, slice, and inspect text. When you