tsconfig.json

{
  "compilerOptions": {
    "target": "ESNext",
    "lib": ["dom", "dom.iterable", "esnext"],
    "allowJs": true,
    "skipLibCheck": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "strict": true,
    // Not implied by strict, and both are aimed at this tree. The first types
    // every index access as possibly undefined, which is what the dataset
    // parser, the page slice and the column lookups all do. The second stops an
    // optional property being written as an explicit undefined, so an absent
    // value and a present undefined stay distinguishable.
    "noUncheckedIndexedAccess": true,
    "exactOptionalPropertyTypes": true,
    // Imports and exports are emitted as written rather than elided by
    // inference, so a type-only import has to say so. The convention was
    // already followed everywhere, which is why this turns on against a clean
    // tree; the flag is what stops it lapsing silently.
    "verbatimModuleSyntax": true,
    "forceConsistentCasingInFileNames": true,
    "noFallthroughCasesInSwitch": true,
    "module": "esnext",
    // Was "node", which is node10 resolution and ignores the exports field. The
    // bundler package ships neither a main nor a types field and is reachable
    // only through its exports map, so the compiler could not find the
    // declarations for the programmatic build entry point that the bundle guard
    // imports. This value is the resolution the bundler itself performs.
    "moduleResolution": "bundler",
    // Resolves the package specifier to src/, so typechecking needs no lib/.
    "customConditions": ["@yart/source"],
    "resolveJsonModule": true,
    "isolatedModules": true,
    "noEmit": true,
    "allowImportingTsExtensions": true,
    "jsx": "react-jsx"
  },
  "include": [
    "src",
    "e2e",
    "bench",
    "vitest.setup.ts",
    "vite.config.ts",
    "vite.lib.config.ts",
    "vite.shared.ts",
    "vitest.stryker.config.ts",
    "playwright.config.ts",
    "eslint.config.js",
    "stryker.conf.js",
    "scripts"
  ]
}