---
title: "Speeding up the JavaScript ecosystem - Isolated Declarations"
url: https://daily.dev/posts/speeding-up-the-javascript-ecosystem---isolated-declarations-gyzdtqwyz
source_url: https://marvinh.dev/blog/speeding-up-javascript-ecosystem-part-10/
type: article
source: "Marvin Hagemeister"
published: 2024-07-06T15:15:35.928Z
updated: 2024-08-23T14:33:12.747Z
tags: ["webdev", "javascript", "devops", "typescript", "npm"]
reading_time: 8
upvotes: 5
comments: 0
language: en
---

> ## Documentation Index
> Fetch the complete documentation index at: https://daily.dev/llms.txt
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# Speeding up the JavaScript ecosystem - Isolated Declarations

**[Marvin Hagemeister](https://daily.dev/sources/marvinh)** · 8 min read · 5 upvotes · 0 comments

## Summary

TypeScript 5.5 introduced the isolated declaration feature, simplifying the process of packaging and distributing JavaScript code. This innovation reduces the time required to create type definition files dramatically. By eliminating the need for manual creation of `.d.ts` files, the new feature accelerates publishing and improves development workflows. The JSR registry leverages this feature, making package sharing faster and easier for all developers, regardless of their experience level.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://marvinh.dev/blog/speeding-up-javascript-ecosystem-part-10/>

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---

Tags: [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#devops](https://daily.dev/tags/devops), [#typescript](https://daily.dev/tags/typescript), [#npm](https://daily.dev/tags/npm)

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