Writing Your First Vite Plugin

This talk is scheduled for Nov 22, 18:10
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Vite is an essential tool for modern front-end development. We use it daily, but we know little about its inner workings. We write  .jsx or .vue files, but how do they get transpiled into .js files? There's likely some magic behind Vite's plugins, but how do they work?

In this talk, we'll start by creating a simple plugin and progress to more advanced ones. After this session, you'll understand how Vite plugins work and the overall flow, even without prior knowledge of Vite plugins.

With this new knowledge, you can perform computations during the build process that don't necessarily occur at runtime. This can naturally result in faster runtime performance. In some cases, the computation results are included directly in the bundle output, reducing the final bundle size (as you don't need to include the data or logic for the computation). Additionally, you can improve the developer experience by automating certain manual tasks.

This talk will introduce you to something you hadn't considered learning before. It will make you realize that it's not as difficult as you might have thought, and hopefully, this talk will boost your confidence in learning.

This talk has been presented at React Summit US 2024, check out the latest edition of this React Conference.

FAQ

VIT is a dev server, transpiler, and bundler used in front-end development to convert TSX and JSX files into JavaScript, which browsers can understand.

Rollup is a bundler that consolidates a chain of imported JavaScript files into a single file, helping to simplify the structure and improve performance.

VIT uses plugins to handle image imports by transforming them into JS modules. Rollup and VIT share a similar plugin architecture, allowing existing Rollup plugins to be used in VIT.

A VIT plugin typically includes resolve ID, load, and transform functions, which handle file identification, loading, and transformation respectively.

Yes, VIT has adapted Rollup's plugin architecture, allowing the use of existing Rollup plugins within VIT projects.

A virtual module allows handling static data at build time, enabling the bundler to include computation results directly in the output without the original business logic.

A VIT plugin can transform code using the transform function, which processes and modifies the code based on specific conditions or requirements.

The resolve ID function determines whether a plugin can handle a specific file or module by returning its ID, indicating its capability to process it.

JSON.stringify is used in Rollup plugins to ensure that the output is correctly formatted and meets Rollup's requirements for representing data.

You can reach out to the speaker, Eunjae Lee, on Twitter at @Ninja_Lee for more questions about VIT plugins.

Eunjae Lee
Eunjae Lee
22 Nov, 2024
Video transcription, chapters and summary will be available after the recording is published.

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