Setup

Installation

pnpm install arktype

You'll also need...

• TypeScript version >=5.1.
• A package.json with "type": "module" (or an environment that supports ESM imports)
• A tsconfig.json with...
  • strict or strictNullChecks (required)
  • skipLibCheck (strongly recommended, see FAQ)
  • exactOptionalPropertyTypes (recommended)

VSCode

Settings

To take advantage of all of ArkType's autocomplete capabilities, you'll need to add the following to your workspace settings at .vscode/settings.json:

// allow autocomplete for ArkType expressions like "string | num"
"editor.quickSuggestions": {
	"strings": "on"
},
// prioritize ArkType's "type" for autoimports
"typescript.preferences.autoImportSpecifierExcludeRegexes": [
	"^(node:)?os$"
],

Extension (optional)

ArkDark provides the embedded syntax highlighting you'll see throughout the docs.

Without it, your definitions can still feel like a natural extension of the language.

With it, you'll forget there was ever a boundary in the first place.

Other editors

If you're using a different editor, we'd love help adding support. In the meantime, don't worry- ArkType still offers best-in-class DX anywhere TypeScript is supported.