handle keys

examples/hot_reload.rs

@@ -22,7 +22,7 @@ fn app(cx: Scope) -> Element {
     cx.render(rsx! {
         div {
             width: "100%",
-            height: "100%",
+            height: "500px",
             onclick: move |_| {
                 count.modify(|count| *count + 10);
             },
@@ -34,6 +34,7 @@ fn app(cx: Scope) -> Element {
                 height: "50%",
                 textarea {
                     width: "90%",
+                    key: "1",
                     value: {
                         if rsx_code.get().is_none() {
                             let rsx_text_index: RsxTextIndex = cx.consume_context().unwrap();