tsconfig.json

{
    "compilerOptions": {
        "target": "es5",
        "lib": ["dom", "dom.iterable", "es2015", "es2017.object", "es2016.array.include"],
        "allowJs": false,
        "skipLibCheck": true,
        "esModuleInterop": false,
        "allowSyntheticDefaultImports": true,
        "strict": true,
        "noImplicitAny": true,
        "strictNullChecks": true,
        "strictFunctionTypes": true,
        "strictBindCallApply": true,
        "strictPropertyInitialization": true,
        "noImplicitThis": true,
        "alwaysStrict": true,
        "forceConsistentCasingInFileNames": true,
        "module": "es2015",
        "moduleResolution": "node",
        "resolveJsonModule": true,
        "isolatedModules": true,
        "jsx": "react",
        "outDir": "./compiled.tsc/",
        "rootDir": "./src/",
        "importHelpers": true,
        "downlevelIteration": true,
        "typeRoots": ["node_modules/@types", "custom_typings"]
    },
    "include": ["src"]
}