@vue/tsconfig

@vue/tsconfig

TSConfigs for Vue projects to extend.

Requires TypeScript >= 5.0. For TypeScript v4.5 to v4.9, please use v0.1.x.

See below for the changes in v0.3.x.

Installation

npm add -D @vue/tsconfig

Usage

Add one of the available configurations to your tsconfig.json:

The Base Configuration (Runtime-agnostic)

"extends": "@vue/tsconfig/tsconfig.json"

Configuration for Browser Environment

"extends": "@vue/tsconfig/tsconfig.dom.json"

Configuration for Node Environments

First install the base tsconfig and types for the Node.js version you are targeting, for example:

npm add -D @tsconfig/node18 @types/node@18

If you are not using any bundlers, the Node.js code doesn't rely on any Vue/Vite-specific features, then these would be enough, you may not need to extend the Vue TSConfig:

"extends": "@tsconfig/node18/tsconfig.json",
"compilerOptions": {
  "types": ["node"]
}

Otherwise, if you are trying to use Vue components in Node.js environments (e.g. Server Side Rendering, Vitest, etc.), you will need to extend the Vue TSConfig along with the Node.js TSConfig:

"extends": [
  "@tsconfig/node18/tsconfig.json",
  "@vue/tsconfig/tsconfig.json"
],
"compilerOptions": {
  "types": ["node"]
}

Make sure to place @vue/tsconfig/tsconfig.json after @tsconfig/node18/tsconfig.json so that it takes precedence.

Emitting Declaration Files

As most Vue projects are built with bundlers, the default Vue TSConfig does not emit declaration files. If you are building a library or a component library, you can enable declaration file emitting by also extending @vue/tsconfig/tsconfig.lib.json in your tsconfig.json:

"extends": [
  "@vue/tsconfig/tsconfig.dom.json",
  "@vue/tsconfig/tsconfig.lib.json"
]

Migrating from TypeScript < 5.0

• The usage of base tsconfig.json is unchanged.
• tsconfig.web.json is now renamed to tsconfig.dom.json, to align with @vue/runtime-dom and @vue/compiler-dom.
• tsconfig.node.json is removed, please read the Node.js section above for Node.js usage.

Some configurations have been updated, which might affect your projects:

• moduleResolution changed from node to bundler. This aligns more closely to the actual resolution rules in modern bundlers like Vite. However, some existing code may be broken under this new mode
  • Most notably, it implies "resolvePackageJsonExports": true by default, so it prefers the exports field of package.json files when resolving a third party module.
    • Some third party packages may not have this field set up correctly, but the bugs were previously hidden by the node mode.
    • Some notable packages include vue-i18n@9.2.2, vuetify@3.2.3, v-calendar@3.0.3, etc.
    • While vue-i18n has fixed this issue in v9.3 beta, and vuetify will solve the issue in v3.3, other packages may not be so quick to fix. In that case, you can override the compilerOptions.resolvePackageJsonExports option to false in your tsconfig.json to temporarily work around the issue.
    • But we encourage you to submit PRs to these packages to fix the bugs, so that we can all move forward to the new resolution mode. You can use tools like publint and Are the types wrong? to help you find and debug the issues.
  • Another small breaking change is that --moduleResolution bundler does not support resolution of require calls. In TypeScript files, this means the import mod = require("foo”) syntax is forbidden.
• The lib option in tsconfig.dom.json now includes ES2020 by default.

  • Previously it was ES2016, which was the lowest ES version that Vue 3 supports.

  • Vite 4 transpiles down to ES2020 by default, this new default is to align with the build tool.

  • This change won't throw any new errors on your existing code, but if you are targeting old browsers and want TypeScript to throw errors on newer features used, you can override the lib option in your tsconfig.json:

    {
      "extends": "@vue/tsconfig/tsconfig.dom.json",
      "compilerOptions": {
        "lib": ["ES2016", "DOM", "DOM.Iterable"]
      }
    }