tsconfig.json

{
    "compilerOptions": {
        "module": "esnext",
        "target": "es5",
        "lib": [
            "dom",
            "es6",
            "es2016",
            "es2017.object"
        ],
        "sourceMap": true,
        "allowJs": true,
        "jsx": "react",
        "moduleResolution": "node",
        "rootDir": "src/app",
        "baseUrl": "src/app",
        "forceConsistentCasingInFileNames": true,
        "noImplicitReturns": true,
        "noImplicitThis": true,
        "noImplicitAny": true,
        "strictNullChecks": false,
        "suppressImplicitAnyIndexErrors": true,
        "noUnusedLocals": true,
        "allowSyntheticDefaultImports": true
    },
    "exclude": [
        "node_modules",
        "build",
        "scripts",
        "acceptance-tests",
        "webpack",
        "jest",
        "src/app/setupTests.ts",
        "tests",
        "**/*.test.ts",
        "**/test"
    ]
}