type-coverage vs ts-migrate

type-coverage

A CLI tool to check type coverage for typescript code (by plantain-00)

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ts-migrate

A tool to help migrate JavaScript code quickly and conveniently to TypeScript (by airbnb)

TypeScript JavaScript Codemod Migration

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type-coverage		ts-migrate
	Project
2	Mentions	15
1,188	Stars	5,307
-	Growth	0.5%
6.9	Activity	4.6
26 days ago	Latest Commit	6 months ago
TypeScript	Language	TypeScript
MIT License	License	MIT License

The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

type-coverage

Posts with mentions or reviews of type-coverage. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-04-23.

How We Migrated from Javascript and Flow to TypeScript at Osome
4 projects | dev.to | 23 Apr 2022

There is a helpful tool that you can use for your needs.
TypeScript 4.5 adds JSDoc template tag defaults
4 projects | dev.to | 9 Nov 2021

Now it gets set to undefined when no value is provied and my type-coverage got closer to 100%.

ts-migrate

Posts with mentions or reviews of ts-migrate. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-11-04.

How to Do a TypeScript Conversion: an opinionated take on gradual conversions
2 projects | news.ycombinator.com | 4 Nov 2023

Airbnb converted many millions of lines gradually using automation and wrote about it:
https://medium.com/airbnb-engineering/ts-migrate-a-tool-for-...
And also open sourced the tooling:
https://github.com/airbnb/ts-migrate
Declaring static json imported "as const"
1 project | /r/typescript | 20 Feb 2023

Are you migrating with ts-migrate?
A Comparison of Node.js Environment Managers
5 projects | dev.to | 9 Aug 2022

When you migrate your entire project over to TypeScript, errors like "undefined is not a function", syntax errors, or reference errors should no longer exist in your codebase. Thankfully, this is not as daunting as it sounds. Migrating your entire Node.js application to TypeScript can be done incrementally so that you can start reaping the rewards immediately in crucial parts of the codebase. You can also adopt a tool like ts-migrate if you intend to perform the migration in one go.
How We Migrated from Javascript and Flow to TypeScript at Osome
4 projects | dev.to | 23 Apr 2022

Flow to ts — helps to produce raw migration from Flow to TS files and reduces monkey job. TS migrate — helps convert JS files to Typescript files. A great introduction can be found here.
Should a team of one (me) with some TS experience attempt to refactor a mid-size fullstack app (React & Node) to TypeScript?
2 projects | /r/typescript | 22 Apr 2022
The Best Integration Testing Library for Serverless Projects Now Supports Typescript!
2 projects | dev.to | 1 Mar 2022

💡 I typed it using ts-migrate ts-migrate is a tool I strongly recommend. It's been developed by Airbnb to help to migrate easily JavaScript projects to TypeScript.
Should I migrate to TS?
3 projects | /r/reactjs | 10 Feb 2022

When you decide to migrate, I recommend checking https://github.com/airbnb/ts-migrate may speed few migration steps (but it wont solve missing types/interfaces)
How to Overcome Your TypeScriptoPhobia
2 projects | dev.to | 31 Jan 2022

You can use AirBnb's ts-migrate tool or try a more direct tactic following the Migrating from JavaScript guide.
[AskJS] Would a Javascript to Typescript Converter Be Useful?
2 projects | /r/javascript | 25 Jan 2022

Take a look at https://github.com/airbnb/ts-migrate
A Comprehensive Guide To Error Handling In Node.js
7 projects | dev.to | 4 Jan 2022

When you migrate your entire project over to TypeScript, errors like "undefined is not a function", syntax errors, or reference errors should no longer exist in your codebase. Thankfully, this is not as daunting as it sounds. Migrating your entire Node.js application to TypeScript can be done incrementally so that you can start reaping the rewards immediately in crucial parts of the codebase. You can also adopt a tool like ts-migrate if you intend to perform the migration in one go.

What are some alternatives?

When comparing type-coverage and ts-migrate you can also consider the following projects:

TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

TypeStat - Converts JavaScript to TypeScript and TypeScript to better TypeScript. 🧫

pony-cause - Ponyfill and helpers for the standardized Error Causes

jscodeshift - A JavaScript codemod toolkit.

flow-to-ts - Convert flow code to typescript

flow-to-typescript-codemod - Codemod Stripe used to migrate 6.5m+ lines of code from Flow to TypeScript

dependency-cruiser - Validate and visualize dependencies. Your rules. JavaScript, TypeScript, CoffeeScript. ES6, CommonJS, AMD.

mocha - ☕️ simple, flexible, fun javascript test framework for node.js & the browser

astx - Super powerful structural search and replace for JavaScript and TypeScript to automate your refactoring

sls-test-tools - Custom Jest Assertions for Serverless integration testing.

storybook - Storybook is a frontend workshop for building UI components and pages in isolation. Made for UI development, testing, and documentation.