fix: helper use_state_auto_clean

Author: EqualMa

README.md

@@ -12,7 +12,7 @@ Rust bindings for `React`.
 `Cargo.toml`
 
 ```toml
-react-sys = "1.0.0-alpha.10"
+react-sys = "1.0.0-alpha.11"
 ```
 
 Though the version is at `1.x-alpha`,

helpers/use-state-import.js

@@ -7,8 +7,6 @@ export function use_state_object(initial_value) {
 export function use_state_auto_clean(initial_value, clean) {
   const obj = use_state_object(initial_value);
   const state = obj.value;
-  React.useEffect(() => {
-    clean(state);
-  }, [state]);
+  React.useEffect(() => () => void clean(state), [state]);
   return obj;
 }

helpers/use-state.js

@@ -5,8 +5,6 @@ export function use_state_object(initial_value) {
 export function use_state_auto_clean(initial_value, clean) {
   const obj = use_state_object(initial_value);
   const state = obj.value;
-  React.useEffect(() => {
-    clean(state);
-  }, [state]);
+  React.useEffect(() => () => void clean(state), [state]);
   return obj;
 }