Added checked: element.checked to INPUT in elementConverters (#1126)

Author: DennisHC

docs/source/about/changelog.rst

@@ -20,15 +20,16 @@ Unreleased
 
 **Fixed**
 
-- :pull:`1118` - `module_from_template` is broken with a recent release of `requests`
-- :pull:`1131` - `module_from_template` did not work when using Flask backend
-- :pull:`1200` - Fixed `UnicodeDecodeError` when using `reactpy.web.export`
+- :pull:`1118` - ``module_from_template`` is broken with a recent release of ``requests``
+- :pull:`1131` - ``module_from_template`` did not work when using Flask backend
+- :pull:`1200` - Fixed ``UnicodeDecodeError`` when using ``reactpy.web.export``
 - :pull:`1224` - Fixes needless unmounting of JavaScript components during each ReactPy render.
+- :pull:`1126` - Fixed missing ``event["target"]["checked"]`` on checkbox inputs
 
 **Added**
 
 - :pull:`1165` - Allow concurrently rendering discrete component trees - enable this
-  experimental feature by setting `REACTPY_ASYNC_RENDERING=true`. This improves
+  experimental feature by setting ``REACTPY_ASYNC_RENDERING=true``. This improves
   the overall responsiveness of your app in situations where larger renders would
   otherwise block smaller renders from executing.
 

src/js/packages/event-to-object/src/index.ts

@@ -303,7 +303,10 @@ const elementConverters: { [key: string]: (element: any) => any } = {
   FORM: (element: HTMLFormElement) => ({
     elements: Array.from(element.elements).map(convertElement),
   }),
-  INPUT: (element: HTMLInputElement) => ({ value: element.value }),
+  INPUT: (element: HTMLInputElement) => ({
+    value: element.value,
+    checked: element.checked,
+  }),
   METER: (element: HTMLMeterElement) => ({ value: element.value }),
   OPTION: (element: HTMLOptionElement) => ({ value: element.value }),
   OUTPUT: (element: HTMLOutputElement) => ({ value: element.value }),