Update README.md

frejs · Apr 12, 2020 · 02c5b15 · 02c5b15
1 parent 9c86949
commit 02c5b15
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -253,7 +253,7 @@ function App() {
 }
 
 function A() {
-  const context = useContext(Context, ctx => ctx.count1)
+  const context = useContext(Context, ctx => ctx.count1) // with selector, only execute when count1 changed
   console.log('A')
   return <div>{context}</div>
 }