LibJS: Set length property in Object::put_native_function()

Author: https://github.com/linusg
Commit: cd3e2690eb
Pull-request: https://github.com/SerenityOS/serenity/pull/1622
Reviewed-by: https://github.com/awesomekling ✅

Libraries/LibWeb/Bindings/HTMLCanvasElementWrapper.cpp

@@ -40,7 +40,7 @@ namespace Bindings {
 HTMLCanvasElementWrapper::HTMLCanvasElementWrapper(HTMLCanvasElement& element)
     : ElementWrapper(element)
 {
-    put_native_function("getContext", get_context);
+    put_native_function("getContext", get_context, 1);
 
     put_native_property("width", width_getter, nullptr);
     put_native_property("height", height_getter, nullptr);