tsconfig.json

{
  "include": [
    "src/**/*",
    "type"
  ],
  "compilerOptions": {
    "outDir": "build",
    //"outFile": "./build_core/index.js",
    "target": "esnext",
    "module": "esnext",
    "jsx": "react",
    "noEmit": false,
    "removeComments": true,
    "allowJs": true,
    "strict": true,
    "alwaysStrict": true,
    "checkJs": true,
    "sourceMap": false,
    "declaration": true,
    "declarationMap": false,
    "downlevelIteration": true,
    "importHelpers": false,
    "incremental": true,
    "strictBindCallApply": true,
    "noImplicitAny": true,
    "noUnusedLocals": true,
    "noUnusedParameters": true,
    "strictNullChecks": true,
    "noFallthroughCasesInSwitch": true,
    "forceConsistentCasingInFileNames": true,
    "strictFunctionTypes": true,
    "strictPropertyInitialization": true,
    "esModuleInterop": true,
    "allowSyntheticDefaultImports": true,
    "moduleResolution": "node",
    "lib": [
      "ESNext",
      "dom"
    ]
  }
}