# nuxt typecheck

> The typecheck command runs vue-tsc to check types throughout your app.

```bash [Terminal]
npx nuxt typecheck [ROOTDIR] [--cwd=<directory>] [--logLevel=<silent|info|verbose>] [--dotenv] [-e, --extends=<layer-name>]
```

The `typecheck` command runs [`vue-tsc`](https://github.com/vuejs/language-tools/tree/master/packages/tsc) to check types throughout your app.

## Arguments

<table>
<thead>
  <tr>
    <th>
      Argument
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        ROOTDIR="."
      </code>
    </td>
    
    <td>
      Specifies the working directory (default: <code>
        .
      </code>
      
      )
    </td>
  </tr>
</tbody>
</table>

## Options

<table>
<thead>
  <tr>
    <th>
      Option
    </th>
    
    <th>
      Default
    </th>
    
    <th>
      Description
    </th>
  </tr>
</thead>

<tbody>
  <tr>
    <td>
      <code>
        --cwd=<directory>
      </code>
    </td>
    
    <td>
      
    </td>
    
    <td>
      Specify the working directory, this takes precedence over ROOTDIR (default: <code>
        .
      </code>
      
      )
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        --logLevel=<silent|info|verbose>
      </code>
    </td>
    
    <td>
      
    </td>
    
    <td>
      Specify build-time log level
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        --dotenv
      </code>
    </td>
    
    <td>
      
    </td>
    
    <td>
      Path to <code>
        .env
      </code>
      
       file to load, relative to the root directory
    </td>
  </tr>
  
  <tr>
    <td>
      <code>
        -e, --extends=<layer-name>
      </code>
    </td>
    
    <td>
      
    </td>
    
    <td>
      Extend from a Nuxt layer
    </td>
  </tr>
</tbody>
</table>

<note>

This command sets `process.env.NODE_ENV` to `production`. To override, define `NODE_ENV` in a [`.env`](/docs/4.x/directory-structure/env) file or as a command-line argument.

</note>

<read-more to="/docs/4.x/guide/concepts/typescript#type-checking">

Read more on how to enable type-checking at build or development time.

</read-more>

<style>

html pre.shiki code .s52Pk, html code.shiki .s52Pk{--shiki-light:#E2931D;--shiki-default:#E2931D;--shiki-dark:#FFCB6B}html pre.shiki code .sGFVr, html code.shiki .sGFVr{--shiki-light:#91B859;--shiki-default:#91B859;--shiki-dark:#C3E88D}html pre.shiki code .sZSNi, html code.shiki .sZSNi{--shiki-light:#90A4AE;--shiki-default:#90A4AE;--shiki-dark:#BABED8}html pre.shiki code .sDfIl, html code.shiki .sDfIl{--shiki-light:#39ADB5;--shiki-default:#39ADB5;--shiki-dark:#89DDFF}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}

</style>

---

- [Source](https://github.com/nuxt/cli/blob/main/packages/nuxi/src/commands/typecheck.ts)