--- title: "An Introduction to Conditional Types in TypeScript" url: https://daily.dev/posts/an-introduction-to-conditional-types-in-typescript-r-ip5plsg source_url: https://devdojo.com/smpnjn/an-introduction-to-conditional-types-in-typescript type: article source: "DevDojo" author: "Johnny" published: 2022-08-08T06:38:03.047Z updated: 2022-08-08T06:38:02.953Z tags: ["typescript"] reading_time: 5 upvotes: 14 comments: 2 language: 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. # An Introduction to Conditional Types in TypeScript **[DevDojo](https://daily.dev/sources/devdojo)** · [@smpnjn](https://daily.dev/smpnjn) · 5 min read · 14 upvotes · 2 comments ## Summary Conditional types in TypeScript give us the ability to define certain types based on logic. Let's look at a simplistic example to understand how this works. Here, a value could be the user's date of birth (DOB) or age. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Community discussion Top comments from developers on daily.dev. **@bobbyiliev** · 1 upvotes > Great post! Well done! **@betweennames** · 0 upvotes > TypeScript is such a cool language, and this is coming from someone who really despises JavaScript. > TypeScript is still a mess to work with - it's still a superset of JavaScript after all - but at least it has some fun aspects. ## 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 · 0 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 --- Tags: [#typescript](https://daily.dev/tags/typescript) [View this post on daily.dev](https://daily.dev/posts/an-introduction-to-conditional-types-in-typescript-r-ip5plsg)