tsconfig.json

{
    "compilerOptions": {
        "outDir": "dist",
        "target": "ES5",
        // "module": "umd",
        // "moduleResolution": "Classic",
        // "allowUmdGlobalAccess": true,
        // "isolatedModules": true,
        "allowJs": true,
        // "experimentalDecorators": true,
        // "noImplicitThis": true,
        // "noImplicitReturns": true,
        "alwaysStrict": true,
        // "inlineSourceMap": true,
        // "inlineSources": false,
        // "noFallthroughCasesInSwitch": true,
        // "noUnusedLocals": true,
        // "noUnusedParameters": true,
        // "strict": true,
        // "removeComments": true,
        // "pretty": true,
        // "strictPropertyInitialization": true,
        "allowSyntheticDefaultImports": true,
        "skipLibCheck": true,
        "lib": ["es2015", "dom"],
        "rootDir": "src",
        "typeRoots": [
        ],
        "paths": {
        }
    },
    "include": [
        "./src/**/*.ts"
    ]
}