tsconfig.json

{
  "compilerOptions": {
    /* Language and Environment */
    "target": "ES5" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
    "experimentalDecorators": true,
    "typeRoots": ["./src/types", "./node_modules/@types"],

    /* Modules */
    "moduleResolution": "node" /* Specify how TypeScript looks up a file from a given module specifier. */,
    "resolveJsonModule": true /* Enable importing .json files. */,
    "rootDir": "src" /* Specify the root folder within your source files. */,

    /* JavaScript Support */
    "allowJs": true /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */,

    /* Emit */
    "sourceMap": true /* Create source map files for emitted JavaScript files. */,
    "outDir": "dist" /* Specify an output folder for all emitted files. */,
    "removeComments": true /* Disable emitting comments. */,
    "noEmitOnError": true /* Disable emitting files if any type checking errors are reported. */,

    /* Interop Constraints */
    "isolatedModules": true /* Ensure that each file can be safely transpiled without relying on other imports. */,
    "allowSyntheticDefaultImports": true /* Allow 'import x from y' when a module doesn't have a default export. */,
    "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
    "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,

    /* Type Checking */
    "strict": true /* Enable all strict type-checking options. */,
    "noFallthroughCasesInSwitch": true /* Enable error reporting for fallthrough cases in switch statements. */,
    "noImplicitAny": true /* Enable error reporting for expressions and declarations with an implied 'any' type. */,
    "strictNullChecks": true /* When type checking, take into account 'null' and 'undefined'. */,
    "noImplicitThis": true /* Enable error reporting when 'this' is given the type 'any'. */,
    "alwaysStrict": true /* Ensure 'use strict' is always emitted. */,
    "noUnusedLocals": true /* Enable error reporting when local variables aren't read. */,
    "noImplicitReturns": true /* Enable error reporting for codepaths that do not explicitly return in a function. */,

    /* Completeness */
    "skipLibCheck": true /* Skip type checking all .d.ts files. */
  },
  "include": ["src/**/*.ts", "src/types/*.d.ts", "*.d.ts"],
  "exclude": ["node_modules", "build", "dist", "coverage", "test"]
}