title: Enabling TSLint in VS Code
body: <p>I have a situation where tslint is working on SOME VS Code projects while not working on other projects. The projects where it's working are from <a href="https://github.com/facebook/create-react-app" rel="noreferrer">create-react-app</a> with TypeScript modifications.
  But when I create a new TypeScript (non-React) project and just copy the tslint.json from the React app, tslint does not work (no errors/warnings - nothing).</p>
  
  <p>Here's the <code>tslint.json</code> I'm using for both apps:</p>
  
  <pre><code>{
    "extends": ["tslint:recommended", "tslint-react", "tslint-config-prettier"],
    "linterOptions": {
      "exclude": [
        "config/**/*.js",
        "node_modules/**/*.ts"
      ]
    },
    "rules": {
      "ordered-imports": false
    }
  }
  </code></pre>
  
  <p>Here's the way I create a new TypeScript React project with a working tslint:</p>
  
  <pre><code>create-react-app &lt;app-name&gt; --scripts-version=react-scripts-ts
  </code></pre>
  
  <p>I also checked my VS Code Settings and the following is set for both projects:</p>
  
  <pre><code>"tslint.enable": true,
  </code></pre>
  
  <p><code>tsconfig.json</code> for the "tslint working" project (generated by create-react-app):</p>
  
  <pre><code>{
    "compilerOptions": {
      "baseUrl": ".",
      "outDir": "build/dist",
      "module": "esnext",
      "target": "es5",
      "lib": ["es6", "dom"],
      "sourceMap": true,
      "allowJs": true,
      "jsx": "react",
      "moduleResolution": "node",
      "rootDir": "src",
      "forceConsistentCasingInFileNames": true,
      "noImplicitReturns": true,
      "noImplicitThis": true,
      "noImplicitAny": false,
      "strictNullChecks": true,
      "suppressImplicitAnyIndexErrors": true,
      "noUnusedLocals": true
    },
    "exclude": [
      "node_modules",
      "build",
      "scripts",
      "acceptance-tests",
      "webpack",
      "jest",
      "src/setupTests.ts"
    ]
  }
  </code></pre>
  
  <p><code>tsconfig.json</code> for the "tslint not working" project (generated by me):</p>
  
  <pre><code>{
    "compilerOptions": {
      /* Basic Options */
      "target": "es5",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
      "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
      // "lib": [],                             /* Specify library files to be included in the compilation. */
      // "allowJs": true,                       /* Allow javascript files to be compiled. */
      // "checkJs": true,                       /* Report errors in .js files. */
      // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
      // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
      // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
      // "sourceMap": true,                     /* Generates corresponding '.map' file. */
      // "outFile": "./",                       /* Concatenate and emit output to single file. */
      // "outDir": "./",                        /* Redirect output structure to the directory. */
      // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
      // "composite": true,                     /* Enable project compilation */
      // "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. */
      // "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. */
  
      /* 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 */
      "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
      // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
      // "paths": {},                           /* 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. */
      // "typeRoots": [],                       /* List of folders to include type definitions from. */
      // "types": [],                           /* Type declaration files to be included in compilation. */
      // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
      "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
      // "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. */
      // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
      // "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/**/*",
      ],
  }
  </code></pre>