tsconfig.json

{
  "compilerOptions": {
    // "incremental": true,                   /* Enable incremental compilation */
    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'. */
    "module": "es6",                       /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": [
      "esnext",
      "dom"
    ],
    "allowJs": true,                          /* Allow javascript files to be compiled. */
    "checkJs": true,                          /* Report errors in .js files. */
    "jsx": "react",                        /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
    // "composite": true,                     /* Enable project compilation */
    // "noEmit": true,                        /* Do not emit outputs. */
    "outDir": "dist/es",
    "declaration": true,
    "moduleResolution": "node",
    "resolveJsonModule": true,

    /* Strict Type-Checking Options */
    "strict": true,                           /* Enable all strict type-checking options. */
    "sourceMap": true,
    "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
    "strictNullChecks": true,              /* Enable strict null checks. */
    "strictFunctionTypes": true,           /* Enable strict checking of function types. */
    "strictBindCallApply": true,           /* Enable strict 'bind', 'call', and 'apply' methods on functions. */
    "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
    "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
    "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */

    "noUnusedLocals": true,                /* Report errors on unused locals. */
    "noUnusedParameters": true,            /* Report errors on unused parameters. */
    "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
    "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */

    "allowSyntheticDefaultImports": true,     /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */

    /* Advanced Options */
    "forceConsistentCasingInFileNames": true  /* Disallow inconsistently-cased references to the same file. */
  },
  "include": [
    "src/**/*"
  ]
}