fix v-model typescript error (#461)

* fix v-model typescript error

* update changelog

Fixes: #368
Fixes: #457
Closes: #459

Co-authored-by: Andrea Nanni <andrea.nanni3@gmail.com>

CHANGELOG.md

@@ -16,6 +16,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixes
 
 - Fix form submission within Dialog ([#460](https://github.com/tailwindlabs/headlessui/pull/460))
+- Fix TypeScript types for `Listbox` and `Switch` ([#459](https://github.com/tailwindlabs/headlessui/pull/459), [#461](https://github.com/tailwindlabs/headlessui/pull/461))
 
 ## [@headlessui/react@v1.1.0] - 2021-04-26
 

packages/@headlessui-vue/src/components/listbox/listbox.ts

@@ -78,7 +78,7 @@ export let Listbox = defineComponent({
   props: {
     as: { type: [Object, String], default: 'template' },
     disabled: { type: [Boolean], default: false },
-    modelValue: { type: [Object, String, Number, Boolean], default: null },
+    modelValue: { type: [Object, String, Number, Boolean] },
   },
   setup(props, { slots, attrs, emit }) {
     let { modelValue, disabled, ...passThroughProps } = props
@@ -445,7 +445,7 @@ export let ListboxOption = defineComponent({
   name: 'ListboxOption',
   props: {
     as: { type: [Object, String], default: 'li' },
-    value: { type: [Object, String], default: null },
+    value: { type: [Object, String] },
     disabled: { type: Boolean, default: false },
     class: { type: [String, Function], required: false },
     className: { type: [String, Function], required: false },

packages/@headlessui-vue/src/components/switch/switch.ts

@@ -61,7 +61,7 @@ export let Switch = defineComponent({
   emits: ['update:modelValue'],
   props: {
     as: { type: [Object, String], default: 'button' },
-    modelValue: { type: [Object, Boolean], default: null },
+    modelValue: { type: Boolean, default: false },
     class: { type: [String, Function], required: false },
     className: { type: [String, Function], required: false },
   },