--- title: Fundamentals of Functional JavaScript | daily.dev description: This article aims to lay down some fundamentals of Functional Programming, while mainly pertaining to their application in JavaScript. canonical: https://daily.dev/posts/fundamentals-of-functional-javascript-kl1qrpj68 twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Fundamentals of Functional JavaScript | daily.dev og:description: This article aims to lay down some fundamentals of Functional Programming, while mainly pertaining to their application in JavaScript. og:url: https://daily.dev/posts/fundamentals-of-functional-javascript-kl1qrpj68 og:image: https://api.daily.dev/og/posts/KL1qRpj68.png og:image:alt: Fundamentals of Functional JavaScript og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Fundamentals of Functional JavaScript **[Hashnode](https://daily.dev/sources/hashnode)** · [@anmshpndy](https://daily.dev/anmshpndy) · 19 min read · 5 upvotes · 0 comments ## Summary This article aims to lay down some fundamentals of Functional Programming, while mainly pertaining to their application in JavaScript. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Don’t just attend KubeCon \+ CloudNativeCon, Merge Forward your experience\!](https://daily.dev/posts/don-t-just-attend-kubecon-cloudnativecon-merge-forward-your-experience--l0rpp73x8) · CNCF · 1 upvotes · 0 comments - [Announcing H2 2026 KCDs](https://daily.dev/posts/announcing-h2-2026-kcds-m96goajm1) · CNCF · 1 upvotes · 0 comments - [Two months of Open Community Groups](https://daily.dev/posts/two-months-of-open-community-groups-asf52zhbs) · CNCF · 0 upvotes · 0 comments - [CNCF Unveils Schedule for KubeCon \+ CloudNativeCon Europe 2026](https://daily.dev/posts/cncf-unveils-schedule-for-kubecon-cloudnativecon-europe-2026-ikhcoa5cb) · CNCF · 2 upvotes · 0 comments - [CNCF Debuts KubeCon \+ CloudNativeCon Japan 2026 Schedule](https://daily.dev/posts/cncf-debuts-kubecon-cloudnativecon-japan-2026-schedule-xp5pyudub) · CNCF · 1 upvotes · 0 comments --- Tags: [#general-programming](https://daily.dev/tags/general-programming), [#javascript](https://daily.dev/tags/javascript) [View this post on daily.dev](https://daily.dev/posts/fundamentals-of-functional-javascript-kl1qrpj68) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Fundamentals of Functional JavaScript","url":"https://daily.dev/posts/fundamentals-of-functional-javascript-kl1qrpj68","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/fundamentals-of-functional-javascript-kl1qrpj68"},"datePublished":"2021-03-06T19:20:11.039Z","dateModified":"2021-10-07T14:17:10.317Z","description":"This article aims to lay down some fundamentals of Functional Programming, while mainly pertaining to their application in JavaScript.","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8b20fe78e6c2d26446b580f6b18ee1d0","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/8b20fe78e6c2d26446b580f6b18ee1d0","isAccessibleForFree":true,"articleSection":"Hashnode","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Person","name":"Animesh Pandey","url":"https://daily.dev/anmshpndy","image":"https://lh5.googleusercontent.com/-ljTF5_PBOIw/AAAAAAAAAAI/AAAAAAAADk8/AMZuuckV2R9oNOo041RD4MlYKwLw07AB6g/s100/photo.jpg","interactionStatistic":{"@type":"InteractionCounter","interactionType":{"@type":"EndorseAction"},"userInteractionCount":50}},"commentCount":0,"discussionUrl":"https://daily.dev/posts/fundamentals-of-functional-javascript-kl1qrpj68","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":5},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"general-programming,javascript","timeRequired":"PT19M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hashnode","item":"https://daily.dev/sources/hashnode"},{"@type":"ListItem","position":3,"name":"Fundamentals of Functional JavaScript"}]} ```