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<script src="shared.js"></script>
<link rel="stylesheet" href="shared.css" />
<style>
html, body {
min-width: 460px;
min-height: 133px;
}
hr {
width: 100%;
}
</style>
<p>
<b>This page includes an extra development build of React. 🚧</b>
</p>
<p>
The React build on this page includes both development and production versions because dead code elimination has not been applied correctly.
<br />
<br />
This makes its size larger, and causes React to run slower.
<br />
<br />
Make sure to <a href="https://reactjs.org/docs/optimizing-performance.html#use-the-production-build">set up dead code elimination</a> before deployment.
</p>
<hr />
<p>
Open the developer tools, and "Components" and "Profiler" tabs will appear to the right.
</p>
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