This commit is contained in:
eewing
2026-02-17 14:10:16 -06:00
parent 2bca5834c5
commit cf73cd3b4c
11246 changed files with 1690552 additions and 0 deletions
+26
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import { untrack } from "svelte";
export function watch(box, callback, options = {}) {
let prev = $state(box.current);
let ranOnce = false;
const watchEffect = $effect.root(() => {
$effect.pre(() => {
if (prev === box.current || !options.immediate)
return;
if (options.once && ranOnce)
return;
callback(box.current, untrack(() => prev));
untrack(() => (prev = box.current));
ranOnce = true;
});
$effect(() => {
if (prev === box.current || options.immediate)
return;
if (options.once && ranOnce)
return;
callback(box.current, untrack(() => prev));
untrack(() => (prev = box.current));
ranOnce = true;
});
});
return watchEffect;
}