The new GitHub Code View brings users many new features to improve the code reading and exploration experiences, and we overcame a number of unique technical hurdles in order to deliver those features without compromising performance.

The GitHub Blog provides updates, announcements, and insights from the world's leading software development platform, covering topics such as new features, community highlights, and industry trends. Developers can learn about GitHub's latest developments, best practices for collaboration, and tips for maximizing productivity on the platform.

GitHub Blog

The new code view is powerful, intelligent, and interactive, but it is not an attempt to turn the repository browsing experience into an IDE. It must be intuitive and easy to use for all of GitHub’s millions of users. We overcame a number of unique technical hurdles in order to deliver those features without compromising performance.

Crafting a better, faster code view

<p>I like their solution on making code view faster, preserving browser search and keeping it accessible:</p>
<blockquote>
<ul>
<li>A textarea that contains the entire text of the raw file. The contents are accessible, keyboard-navigable, copyable, and findable, yet invisible.</li>
<li>A virtualized, syntax-highlighted overlay. The contents are visible, yet hidden from both mouse events and the browser’s find.</li>
</ul>
</blockquote>


<p>a very insightful blog post! thank you for sharing</p>
