title: Visual Studio Code React not showing error even after adding jsconfig
body: <p>So I am building a REACT JS project, and after a while I noticed that it doesn't underline undefined functions nor wrong imports, for example if I does that:</p>
  
  <pre><code>import React, { useState } from 'reactaeasdfas';
  </code></pre>
  
  <p>it wont say that <code>reactaeasdfas</code> is undefined.</p>
  
  <p>After a bit of searching I found that people say that <code>jsconfig.json</code> should be initialized.</p>
  
  <p>I found a basic one on the internet: </p>
  
  <pre><code>{
      "compilerOptions": {
        "module": "commonjs",
        "target": "es6",
        "jsx": "react"
      },
      "include": [
          "src"
      ]
  }
  </code></pre>
  
  <p>This code above does solve the problem that if I call an undefined function, it will underline it in red, but it still doesn't work if I include undefined import.</p>
  
  <p><strong>Note:</strong> I installed react project via <a href="https://github.com/facebook/create-react-app" rel="noreferrer">create-react-app</a></p>