tsconfig.json

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "experimentalDecorators": true,
    "moduleResolution": "node",
    "outDir": "output",
    "rootDir": ".",
    "sourceMap": true,
    "baseUrl": ".",
    "pretty": true,
    "resolveJsonModule": true,
    "types" : [ "chrome", "node" ],
    "typeRoots": [
      "./node_modules/@types",
      "./node_modules/@types/node",
      "./node_modules/@types/webpack-env"
    ],
    /* Basic Options */
    "target": "es5",
    "module": "commonjs",                  /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "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'. */
    "declaration": true,                   /* Generates corresponding '.d.ts' file. */
    "lib": [
      "dom",
      "es2015",
      "es2016",
      "es2017"
    ],                                     /* Specify library files to be included in the compilation:  */

    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
    // "removeComments": true,                /* Do not emit comments to output. */
    // "noEmit": true,                        /* Do not emit outputs. */
    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */

    /* Strict Type-Checking Options */
    "strict": true,                        /* Enable all strict type-checking options. */
    "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. */
    "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. */

    /* Additional Checks */
    "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. */

    /* Module Resolution Options */
    "paths": {
      "~/*": ["src/*"],
      "@popup/*": ["src/popup/*"],
    },                                     /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
    "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
    "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */

    /* Source Map Options */
    "sourceRoot": "./",                    /* Specify the location where debugger should locate TypeScript files instead of source locations. */
    "mapRoot": "./",                       /* Specify the location where debugger should locate map files instead of generated locations. */
    "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */

    /* Experimental Options */
    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
  },
  "include": [
    "./src",
    "./test",
    "./mocks"
  ]
}