KMKaustubh Mishrainkmscratch.hashnode.dev·Aug 9 · 10 min readHOW JAVA STORES NEGATIVE NUMBERS AND THE LIE OF 0.7Hello! all, a warm welcome to my scratchPad. If you are new to this series and wanna know more about it, as well as my resources and motivation behind it, you can read it up here in the Series Introdu00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 24 · 7 min readNode.js Event Loop Explained ClearlyIntroduction Whenever someone says Node.js is single-threaded, one doubt comes up almost immediately: then how does it handle so many requests at the same time? At first, this sounds a little confusin00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 24 · 6 min readNodeList vs HTMLCollection: Understanding the Real Difference in the DOMIntroduction At some point while learning the DOM, almost everyone runs into this confusion: querySelectorAll() returns one thing, and getElementsByClassName() returns another. But both look like list00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 23 · 3 min readArray Flatten in JavaScriptIntroduction Sometimes an array does not contain direct values only, but other arrays as well. const numbers = [1, [2, 3], [4, 5]]; This is called a nested array. And when we convert it into a simple00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 23 · 2 min readJavaScript Modules: Import and Export ExplainedIntroduction As JavaScript projects grow, one problem appears quickly: keeping all the code in one file becomes messy This is where modules become useful. Why Modules Are Needed If everything is in o00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 23 · 3 min readError Handling in JavaScript: Try, Catch, FinallyIntroduction JavaScript code does not always run perfectly. Sometimes: the wrong variable gets used an invalid value appears an unexpected situation occurs Errors can happen in all of these situa00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 23 · 3 min readAsync/Await in JavaScript: Writing Cleaner Asynchronous CodeIntroduction Promises made asynchronous code better than callbacks. But as the steps increased, .then() chaining could still start to feel a little noisy. This is where async and await become useful. 00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 22 · 7 min read Understanding JavaScript Promises - A Beginner's Real ExperienceWhen I first saw this code: console.log("Start"); setTimeout(() => console.log("Async Task"), 2000); console.log("End"); Output: Start End Async Task My first reaction was, "Okay, there is a 2000ms 00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 22 · 4 min readCallbacks in JavaScript: Why They ExistIntroduction In JavaScript, functions are not just blocks of code that run. We can: store functions pass functions around and call them later This is where the callback concept begins. In simple 00
PSPrashant Sainiinprashsainidev.hashnode.dev·Apr 22 · 4 min readSynchronous vs Asynchronous JavaScriptIntroduction At some point while learning JavaScript, this question naturally comes up: When does code run line by line, and when does some work happen later? This is where the topic of synchronous an00
