some updates

versioned_docs/version-0.0.7/references/b_handler.md

@@ -0,0 +1,24 @@
+---
+title: Handler
+---
+
+A `Handler` is a closure wrapper. Due to how closures work, they aren't the best to work with on structs (in this case: elements). So to fix this we use a `Handler` which is a wrapper for the closure, Then you can safely clone and use it without any problems (in which a normal closure would fail at)
+
+## Examples
+```rust
+Handler::new(|btn: &mut Button, event, document| {
+    // do something
+})
+```
+A better way to do this is:
+```rust
+rsx! {
+    button {
+        // No need for Handler::new
+        on_click: fn(btn: &mut Button, event, document) {
+            // do something
+        }
+    }
+}
+```
+> :::info `fn() {}` is a part of our macro `rsx!`. In rust you would normally use `|| {}`