Cannot find namespace NodeJS

Recently, when trying to use ky, I encountered this error:

error TS2503: Cannot find namespace 'NodeJS'.

2 type UndiciBodyInit = ArrayBuffer | AsyncIterable<Uint8Array> | Blob | FormData | Iterable<Uint8Array> | NodeJS.ArrayBufferView | URLSearchParams | null | string;

To fix this, install @types/node.

npm install @types/node -D

Then add node to the types array in tsconfig.json.

{
  "extends": "@coras/tsconfig/base.json",
  "compilerOptions": {
    "outDir": "./dist",
    "rootDir": "./src",
    "typeRoots": ["node_modules/@types"],
    "module": "esnext",
    "lib": ["esnext", "dom"],
    "types": ["node"]
  },
  "include": ["src/**/*.ts"],
  "exclude": ["node_modules", "dist", "src/**/*.tests.ts"]
}

🎉