tsconfig.json

{
  "display": "Configuration for Exercism TypeScript Exercises",
  "compilerOptions": {
    // Allows you to use the newest syntax, and have access to console.log
    // https://www.typescriptlang.org/tsconfig#lib
    "lib": ["ESNEXT", "dom"],
    // Make sure typescript is configured to output ESM
    // https://gist.github.com/sindresorhus/a39789f98801d908bbc7ff3ecc99d99c#how-can-i-make-my-typescript-project-output-esm
    "module": "ES2020",
    // Since this project is using babel, TypeScript may target something very
    // high, and babel will make sure it runs on your local Node version.
    // https://babeljs.io/docs/en/
    "target": "ESNext", // ESLint doesn't support this yet: "es2022",

    "strict": true,
    "esModuleInterop": true,
    "skipLibCheck": true,
    "forceConsistentCasingInFileNames": true,

    // Because we'll be using babel: ensure that Babel can safely transpile
    // files in the TypeScript project.
    //
    // https://babeljs.io/docs/en/babel-plugin-transform-typescript/#caveats
    "isolatedModules": true
  },
  "include": ["*.ts", "*.tsx", ".meta/*.ts", ".meta/*.tsx"],
  "exclude": ["node_modules"]
}