tsconfig.json

{
    "compileOnSave": false,
    "compilerOptions": {
        "lib": [
            "dom",
            "es2015",
            "es2016",
        ],
        "esModuleInterop": true,
        "experimentalDecorators": true,
        "jsx": "react",
        "target": "es2017",
        "module": "esnext",
        "moduleResolution": "node",
        "noUnusedLocals": true,
        "noUnusedParameters": true,
        "removeComments": false,
        "preserveConstEnums": true,
        "sourceMap": true,
        "skipLibCheck": true,
        "allowJs": true,
        "checkJs": true,
        "resolveJsonModule": true,
        // strictFunctionTypes will trigger errors with decorators.
        "strictFunctionTypes": false,
        // strictNullChecks is almost impossible to turn on, it will give you countless errors
        "strictNullChecks": true,
        "noImplicitAny": true,
        // strictPropertyInitialization depends on nullChecks
        "strictPropertyInitialization": false,
        "suppressImplicitAnyIndexErrors": true,
        "noImplicitThis": true,
        "noImplicitReturns": true,
        "noEmit": true
    },
    "include": [
        "src/**/*.ts",
        "src/**/*.tsx"
    ]
}