tsconfig.json

{
    "compilerOptions": {
        "lib": ["ESNext", "DOM"],
        "target": "ESNext",
        "module": "commonjs",
        "moduleDetection": "force",
        "allowJs": true,

        // Bundler mode
        // "moduleResolution": "bundler",
        // "allowImportingTsExtensions": true,
        // "verbatimModuleSyntax": true,
        // "noEmit": true,

        // Best practices
        "strict": true,
        "skipLibCheck": true,
        // "noFallthroughCasesInSwitch": true,

        // Some stricter flags (disabled by default)
        "noUnusedLocals": false,
        "noUnusedParameters": false,
        "noPropertyAccessFromIndexSignature": false,

        "rootDir": "./src",
        "outDir": "./build",

        // Ensures that TypeScript generates .d.ts files
        "declaration": true,
        "declarationDir": "./build",
    },
    "include": [
        "src/**/*",
    ]
}