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rschmukler merged 1 commit into from
Sep 24, 2026
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docs: improve tree-shaking docs #51

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13 changes: 8 additions & 5 deletions Readme.md
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Expand Up @@ -2048,21 +2048,24 @@ another URL, such as a CDN. By default hyper serves it at
### Tree shaking

Pass `:tree-shake? true` to `create-handler` to serve only the Squint core
functions that your `h/expr` expressions and `defc` components use, instead of all of
`/hyper/squint-core.js` (28 KB brotli-compressed):
functions that your `h/expr` expressions and `defc` components use, plus the
functions those depend on, minified. Without it, hyper serves all of
`/hyper/squint-core.js` (28 KB brotli-compressed).

```clojure
(h/create-handler #'routes :tree-shake? true)
```

Add esbuild to `deps.edn`:
Add the optional esbuild dependency to `deps.edn`:

```clojure
org.babashka/esbuild {:mvn/version "0.1.1"}
```

Add `--enable-native-access=ALL-UNNAMED` to your JVM options for esbuild.
Without esbuild on the classpath, `create-handler` throws.
The `org.babashka/esbuild` library calls esbuild through the JVM's foreign
function API. Add `--enable-native-access=ALL-UNNAMED` to your JVM options to
avoid the JVM's native access warning. Without esbuild on the classpath,
`create-handler` throws.

### Editor indentation

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