Offers a way to configure the root directory for where declaration files are emitted.
example
├── index.ts
├── package.json
└── tsconfig.jsonexample
├── index.ts
├── package.json
└── tsconfig.jsonwith this tsconfig.json:
json
{
  "compilerOptions": {
    "declaration": true,
    "declarationDir": "./types"
  }
}{
  "compilerOptions": {
    "declaration": true,
    "declarationDir": "./types"
  }
}Would place the d.ts for the index.ts in a types folder:
example
├── index.js
├── index.ts
├── package.json
├── tsconfig.json
└── types
    └── index.d.tsexample
├── index.js
├── index.ts
├── package.json
├── tsconfig.json
└── types
    └── index.d.ts