We already have type checking running right in our IDE in a separate process, so the cost of dev experience slow down simply isn't a good trade-off. All official Vue packages come with bundled type declarations that should work out-of-the-box. Or you can manually select the features needed for your project from a set of official plugins. They can also be grouped into reusable presets. Cookie Notice Downloads are calculated as moving averages for a period of the last 12 By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. How about saving the world? Check the features needed for your project - TypeScript ; Choose a version of Vue.js that you want to start the project with - 3.x (Preview) Use class-style component syntax - ; Use Babel alongside TypeScript - The most recent version of Vue CLI is version 3. Thus the package was deemed as Generic Doubly-Linked-Lists C implementation. Use class-style component syntax? Choose Vue version Babel TypeScript Linter / Formatter Next, choose Vue 3.x (Preview) as the version for the project. babelConfig: true for ts-jest means: Ask ts-jest to invoke babel-jest after transforming ts to js with TypeScript Compiler API so that babel-jest can start transpiling the output js from TypeScript Compiler API with Babel config. For the src/shims-vue.d.ts, it might have updated it as expected, otherwise replace it with this: Finally, also delete the tests/unit/example.spec.ts file. It will also scaffold out your project, providing you with a pre-configured starting point that you can build on, rather than starting everything from scratch. 299,140 downloads a week. CLI Plugins are npm packages that provide optional features to your Vue CLI projects, such as Babel/TypeScript transpilation, ESLint integration, unit testing, and end-to-end testing. To use TypeScript in SFCs, add the lang="ts" attribute to