AAyush JainAug 28 · 9 min readMap & Set in JavaScriptLet me tell you about AML Sir, and if you have a professor even a little like him, you already feel my pain. AML Sir takes one of our labs, and he is, without any exaggeration, insanely strict. Formalayushjjainn.hashnode.dev
AAshaaf KhanMay 9 · 5 min readJavaScript Map and Set: The Modern Data Structures You Actually NeedFor years, JavaScript developers relied almost exclusively on Objects for key-value storage and Arrays for lists. While they are the workhorses of the language, they have quirks that can lead to "messashaaf.hashnode.dev
SShravan ChaudhariApr 28 · 8 min readArray Methods Every Developer Must KnowThis article covers the full picture: how to create arrays with static methods, how to mutate them, how to read from them without changing them, and how to iterate over them with the powerful trio of shrvn.hashnode.dev
AAshish Kumar SainiApr 21 · 4 min readMap and Set in JavaScriptWhile working in Javascript, you have mostly worked with objects and arrays. But there are some limitations when used for large data or applying complex operations. Problems in Objects Object must hablog.ashishkumarsaini.dev
RRochak TiwariApr 15 · 4 min readMap and Set in JavaScriptIntroduction JavaScript provides multiple ways to store and manage data, with Objects and Arrays being the most commonly used structures. However, as applications grow in complexity, certain limitatiounderstandingwebdevelopment.hashnode.dev
Ssagar kembleApr 14 · 5 min readMap and Set in JavaScriptWhat Map is Map is a data structure which holds key value pairs. It remembers the orignal insertion order and the map keys are unique and only appear once. Note : Map doesn't allow duplicate keys so iblog.sagarkemble.dev
AAradhya RayMar 26 · 7 min readThe Evolution of Data Structures: A Deep Dive into JavaScript’s Map and SetIn the early decades of JavaScript, developers relied almost exclusively on two fundamental data structures for managing collections: the Object for key-value mapping and the Array for ordered lists. js-a-beginners-guide.hashnode.dev
RRochak TiwariFeb 26 · 4 min readJavaScript Array Methods You Must KnowIn JavaScript array is ordered list of values. Each value is known as element, is assigned a numeric position in array called its index [start from 0th index ...]. Array is grouped in pair of square bunderstandingwebdevelopment.hashnode.dev
RRohit SharmaFeb 7 · 3 min readHigher Order Functions (HOF)A function that: Accepts another function as an argument, Or Returns a function. const diameter=function(radius){ return 2*radius; } Array.prototype.calculate = function(logic) { const output = []; for (let i = 0; i < this.length; i++) {...higherorderfunctionsonarrays.hashnode.dev
PPayal PorwalAug 29, 2025 · 6 min readLooping and Iterating Over Arrays in JavaScriptArrays are one of the most important parts of JavaScript. Often, we need to loop through arrays and perform some action — like doubling numbers, filtering values, or adding everything together. JavaScript gives us some very useful methods: forEach()...codeswithpayal.hashnode.dev
