422: Supporting Packages

Alex and Chris talk about how the 2.0 Editor supports packages from npm . The trick is both simple and complex. The idea is simple. We detect the packages you want to use, list them in an (editable) package.json file, then turn that into a <script type="importmap"> in your HTML files that import those packages from esm.sh . Complex in that, well, all those steps are fairly difficult to get right, handle all edge cases, and do extremely quickly. All of which the CodePen Compiler does. Time Jumps

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422: Supporting Packages is an episode from CodePen Radio by CodePen Blog.

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This episode was published on Apr 14, 2026.

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