--- title: "#map-in-js articles | Hashnode" description: "Explore 26 articles tagged #map-in-js on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/map-in-js" --- Tag # #map-in-js 26 posts · 2 followers [Ayush Jain](https://hashnode.com/@ayushjjainn) · [Aug 28](https://hashnode.com/posts/map-and-set-in-js/6a910ff15fa495c3b18c399e) ### [Map & Set in JavaScript](https://ayushjjainn.hashnode.dev/map-and-set-in-js?utm_source=hashnode&utm_medium=feed) Learn Map and Set in JavaScript: store unique values with Set, key-value pairs with Map, and know when to use them over arrays and objects. 9 min read · [ayushjjainn.hashnode.dev](https://ayushjjainn.hashnode.dev/map-and-set-in-js?utm_source=hashnode&utm_medium=feed) [Ashaaf Khan](https://hashnode.com/@ashaafkhan) · [May 9](https://hashnode.com/posts/javascript-map-and-set/69fea252f239332df4378ed1) ### [JavaScript Map and Set: The Modern Data Structures You Actually Need](https://ashaaf.hashnode.dev/javascript-map-and-set?utm_source=hashnode&utm_medium=feed) Beyond the Limitations of Objects and Arrays 5 min read · [ashaaf.hashnode.dev](https://ashaaf.hashnode.dev/javascript-map-and-set?utm_source=hashnode&utm_medium=feed) [Shravan Chaudhari](https://hashnode.com/@shrvn) · [Apr 28](https://hashnode.com/posts/array-methods-every-developer-must-know/69f0f80010a70b3335e8d232) ### [Array Methods Every Developer Must Know](https://shrvn.hashnode.dev/array-methods-every-developer-must-know?utm_source=hashnode&utm_medium=feed) Master JavaScript array methods with clear examples of map(), filter(), reduce(), push(), and pop. 8 min read · [shrvn.hashnode.dev](https://shrvn.hashnode.dev/array-methods-every-developer-must-know?utm_source=hashnode&utm_medium=feed) [Ashish Kumar Saini](https://hashnode.com/@ashishkumarsaini) · [Apr 21](https://hashnode.com/posts/map-and-set-in-javascript/69e7ce2ce4367278148ffb41) ### [Map and Set in JavaScript](https://blog.ashishkumarsaini.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed) A comparison of a map and a set with an array and objects in Javascript. Explaination with simple examples and necessary functions for beginners 4 min read · [blog.ashishkumarsaini.dev](https://blog.ashishkumarsaini.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed) [Rochak Tiwari](https://hashnode.com/@rochaktiwari) · [Apr 15](https://hashnode.com/posts/map-and-set-in-javascript/69dfda9646ad31000bfd572b) ### [Map and Set in JavaScript](https://understandingwebdevelopment.hashnode.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed) Efficient Data Structures for Key-Value Storage and Uniqueness 4 min read · [understandingwebdevelopment.hashnode.dev](https://understandingwebdevelopment.hashnode.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed) [sagar kemble](https://hashnode.com/@SagarKemble) · [Apr 14](https://hashnode.com/posts/map-and-set-in-javascript/69de470b345b86c2e04b9069) ### [Map and Set in JavaScript](https://blog.sagarkemble.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed) Understand what is map and set and how they are different from object and array's 5 min read · [blog.sagarkemble.dev](https://blog.sagarkemble.dev/map-and-set-in-javascript?utm_source=hashnode&utm_medium=feed) [Aradhya Ray](https://hashnode.com/@AradhyaRay05) · [Mar 26](https://hashnode.com/posts/the-evolution-of-data-structures-a-deep-dive-into-javascript-s-map-and-set/69c4e77710e664c5da77ff8e) ### [The Evolution of Data Structures: A Deep Dive into JavaScript’s Map and Set](https://js-a-beginners-guide.hashnode.dev/the-evolution-of-data-structures-a-deep-dive-into-javascript-s-map-and-set?utm_source=hashnode&utm_medium=feed) Master JS Map and Set. Learn how these ES6 collections improve performance, handle unique data, and solve the limitations of Objects and Arrays. 7 min read · [js-a-beginners-guide.hashnode.dev](https://js-a-beginners-guide.hashnode.dev/the-evolution-of-data-structures-a-deep-dive-into-javascript-s-map-and-set?utm_source=hashnode&utm_medium=feed) [Rochak Tiwari](https://hashnode.com/@rochaktiwari) · [Feb 26](https://hashnode.com/posts/javascript-array-methods-you-must-know/69a0569cab6baac8ff15e026) ### [JavaScript Array Methods You Must Know](https://understandingwebdevelopment.hashnode.dev/javascript-array-methods-you-must-know?utm_source=hashnode&utm_medium=feed) Everythink you must know about push() and pop(),shift() and unshift(),map(),filter(),reduce() (basic explanation only),forEach() 4 min read · [understandingwebdevelopment.hashnode.dev](https://understandingwebdevelopment.hashnode.dev/javascript-array-methods-you-must-know?utm_source=hashnode&utm_medium=feed) [Rohit Sharma](https://hashnode.com/@rohit35184) · [Feb 7](https://hashnode.com/posts/higher-order-functions-hof/6987719503bd547a9cffc99a) ### [Higher Order Functions (HOF)](https://higherorderfunctionsonarrays.hashnode.dev/higher-order-functions-hof?utm_source=hashnode&utm_medium=feed) Learn about higher-order functions with examples like forEach, map, filter, find, reduce, every, and some in JavaScript 3 min read · [higherorderfunctionsonarrays.hashnode.dev](https://higherorderfunctionsonarrays.hashnode.dev/higher-order-functions-hof?utm_source=hashnode&utm_medium=feed) [Payal Porwal](https://hashnode.com/@PayalPorwal) · [Aug 29, 2025](https://hashnode.com/posts/looping-and-iterating-over-arrays-in-javascript/68b133aff43fb8c081ecfcc7) ### [Looping and Iterating Over Arrays in JavaScript](https://codeswithpayal.hashnode.dev/looping-and-iterating-over-arrays-in-javascript?utm_source=hashnode&utm_medium=feed) Learn how to loop and iterate over arrays in JavaScript using forEach, map, filter, and reduce methods with examples 6 min read · [codeswithpayal.hashnode.dev](https://codeswithpayal.hashnode.dev/looping-and-iterating-over-arrays-in-javascript?utm_source=hashnode&utm_medium=feed)