Context consumer unmounting perf

preactjs · Oct 4, 2024 · 4e84f83 · 4e84f83
1 parent 87f7efa
commit 4e84f83
Showing 1 changed file with 5 additions and 1 deletion.
diff --git a/src/create-context.js b/src/create-context.js
@@ -43,7 +43,11 @@ export function createContext(defaultValue, contextId) {
  let old = c.componentWillUnmount;
  c.componentWillUnmount = () => {
  if (subs) {
- subs.splice(subs.indexOf(c), 1);
+ if (subs.length === 1) {
+ subs = [];
+ } else {
+ subs[subs.indexOf(c)] = subs.pop();
+ }
  }
  if (old) old.call(c);
  };