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&lt;p&gt;Note: this feature is available with &lt;code&gt;react-scripts@2.1.0&lt;/code&gt; and higher.&lt;/p&gt;
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<p>Note: this feature is available with <code>react-scripts@2.1.0</code> and higher.</p>
</blockquote>
<p><a href="https://www.typescriptlang.org/">TypeScript</a> is a typed superset of JavaScript that compiles to plain JavaScript.</p>
<p>To start a new Create React App project with <a href="https://www.typescriptlang.org/">TypeScript</a>, you can run:</p>
<pre><code class="hljs css language-sh">npx create-react-app my-app --typescript
<span class="hljs-comment"># or</span>
yarn create react-app my-app --typescript
</code></pre>
<blockquote>
<p>If you've previously installed <code>create-react-app</code> globally via <code>npm install -g create-react-app</code>, we recommend you uninstall the package using <code>npm uninstall -g create-react-app</code> to ensure that <code>npx</code> always uses the latest version.</p>
</blockquote>
<p>To add <a href="https://www.typescriptlang.org/">TypeScript</a> to a Create React App project, first install it:</p>
<pre><code class="hljs css language-sh">npm install --save typescript @types/node @types/react @types/react-dom @types/jest
<span class="hljs-comment"># or</span>
yarn add typescript @types/node @types/react @types/react-dom @types/jest
</code></pre>
<p>Next, rename any file to be a TypeScript file (e.g. <code>src/index.js</code> to <code>src/index.tsx</code>) and <strong>restart your development server</strong>!</p>
<p>Type errors will show up in the same console as the build one.</p>
<p>To learn more about TypeScript, check out <a href="https://www.typescriptlang.org/">its documentation</a>.</p>
<blockquote>
<p><strong>Note:</strong> If your project is not created with TypeScript enabled, npx may be using a cached version of <code>create-react-app</code>.
Remove previously installed versions with <code>npm uninstall -g create-react-app</code> (see <a href="https://github.com/facebook/create-react-app/issues/6119#issuecomment-451614035">#6119</a>).</p>
</blockquote>
<blockquote>
<p><strong>Note:</strong> You are not required to make a <a href="https://www.typescriptlang.org/docs/handbook/tsconfig-json.html"><code>tsconfig.json</code> file</a>, one will be made for you.
You are allowed to edit the generated TypeScript configuration.</p>
</blockquote>
<blockquote>
<p><strong>Note:</strong> If you are currently using <a href="https://github.com/wmonk/create-react-app-typescript/">create-react-app-typescript</a>, see <a href="https://vincenttunru.com/migrate-create-react-app-typescript-to-create-react-app/">this blog post</a> for instructions on how to migrate to Create React App.</p>
</blockquote>
<blockquote>
<p><strong>Note:</strong> We recommend using <a href="https://code.visualstudio.com/">VSCode</a> for a better integrated experience.</p>
</blockquote>
<blockquote>
<p><strong>Note:</strong> Constant enums and namespaces are not supported.</p>
</blockquote>
</span></div></article></div><div class="docLastUpdate"><em>Last updated on 4/30/2019 by Chris Shaffer</em></div><div class="docs-prevnext"><a class="docs-prev button" href="/create-react-app/docs/adding-flow"><span class="arrow-prev">← </span><span>Adding Flow</span></a><a class="docs-next button" href="/create-react-app/docs/adding-relay"><span>Adding Relay</span><span class="arrow-next"> →</span></a></div></div></div><nav class="onPageNav"></nav></div><footer class="nav-footer" id="footer"><section class="sitemap"><a href="/create-react-app/" class="nav-home"><img src="/create-react-app/img/logo.svg" alt="Create React App" width="66" height="58"/></a><div><h5>Docs</h5><a href="/create-react-app/docs/getting-started">Get Started</a><a href="https://reactjs.org/" target="_blank" rel="noreferrer noopener">Learn React</a></div><div><h5>Community</h5><a href="https://stackoverflow.com/questions/tagged/create-react-app" target="_blank" rel="noreferrer noopener">Stack Overflow</a><a href="https://spectrum.chat/react" target="_blank" rel="noreferrer noopener">Spectrum</a><a href="https://twitter.com/reactjs" target="_blank" rel="noreferrer noopener">Twitter</a></div><div><h5>More</h5><a href="https://www.github.com/facebook/create-react-app">GitHub</a><a class="github-button" href="https://github.com/facebook/create-react-app" data-icon="octicon-star" data-count-href="/facebook/create-react-app/stargazers" data-show-count="true" data-count-aria-label="# stargazers on GitHub" aria-label="Star this project on GitHub">Star</a></div></section><a href="https://code.facebook.com/projects/" target="_blank" rel="noreferrer noopener" class="fbOpenSource"><img src="/create-react-app/img/oss_logo.png" alt="Facebook Open Source" width="170" height="45"/></a><section class="copyright">Copyright © 2019 Facebook Inc.</section></footer></div><script type="text/javascript" src="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.js"></script><script>
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