we have .svelte.js files

Author: Rich-Harris

packages/svelte/tests/runtime-runes/samples/event-attribute-import/event.svelte

@@ -0,0 +1,18 @@
+export const log_a = () => {
+	console.log('a');
+};
+
+export const log_b = () => {
+	console.log('b');
+};
+
+let handle = $state(log_a);
+
+export const handler = {
+	get value() {
+		return handle;
+	},
+	set value(v) {
+		handle = v;
+	}
+};

packages/svelte/tests/runtime-runes/samples/event-attribute-import/event.svelte.js

@@ -1,7 +1,7 @@
 <script>
-	import {handler, log_a, log_b} from './event.svelte';
+	import { handler, log_a, log_b } from './event.svelte.js';
 </script>
 
 <button onclick={handler.value}>click</button>
-<button onclick={() => handler.value = log_b}>change</button>
-<button onclick={() => handler.value = log_a}>change back</button>
+<button onclick={() => (handler.value = log_b)}>change</button>
+<button onclick={() => (handler.value = log_a)}>change back</button>