From 7c1b107eb463c04f76548644623015e436cf16d5 Mon Sep 17 00:00:00 2001
From: streamich <streamich@gmail.com>
Date: Mon, 17 Dec 2018 18:37:14 +0100
Subject: [PATCH] =?UTF-8?q?feat:=20=F0=9F=8E=B8=20list=20all=20useAsync=20?=
 =?UTF-8?q?state=20props=20so=20that=20TS=20dont=20complain?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 src/__stories__/useAsync.story.tsx | 4 ++--
 src/useAsync.ts                    | 3 +++
 yarn.lock                          | 8 ++++----
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/src/__stories__/useAsync.story.tsx b/src/__stories__/useAsync.story.tsx
index 8fe24b3dc8..8976224116 100644
--- a/src/__stories__/useAsync.story.tsx
+++ b/src/__stories__/useAsync.story.tsx
@@ -3,14 +3,14 @@ import {storiesOf} from '@storybook/react';
 import {useAsync} from '..';
 import ShowDocs from '../util/ShowDocs';
 
-const fn = () => new Promise((resolve) => {
+const fn = () => new Promise<string>((resolve) => {
   setTimeout(() => {
     resolve('RESOLVED');
   }, 1000);
 });
 
 const Demo = () => {
-  const {loading, value} = useAsync(fn);
+  const {loading, value} = useAsync<string>(fn);
 
   return (
     <div>
diff --git a/src/useAsync.ts b/src/useAsync.ts
index aa0ecfe180..760bceca17 100644
--- a/src/useAsync.ts
+++ b/src/useAsync.ts
@@ -3,10 +3,13 @@ import {useState, useEffect, useCallback} from 'react';
 export type AsyncState<T> =
 | {
   loading: true;
+  error?: undefined;
+  value?: undefined;
 }
 | {
   loading: false;
   error: Error;
+  value?: undefined;
 }
 | {
   loading: false;
diff --git a/yarn.lock b/yarn.lock
index bdab4b1837..0096ce12e6 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -9556,10 +9556,10 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
-typescript@^3.1.3:
-  version "3.1.3"
-  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.1.3.tgz#01b70247a6d3c2467f70c45795ef5ea18ce191d5"
-  integrity sha512-+81MUSyX+BaSo+u2RbozuQk/UWx6hfG0a5gHu4ANEM4sU96XbuIyAB+rWBW1u70c6a5QuZfuYICn3s2UjuHUpA==
+typescript@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/typescript/-/typescript-3.2.2.tgz#fe8101c46aa123f8353523ebdcf5730c2ae493e5"
+  integrity sha512-VCj5UiSyHBjwfYacmDuc/NOk4QQixbE+Wn7MFJuS0nRuPQbof132Pw4u53dm264O8LPc2MVsc7RJNml5szurkg==
 
 ua-parser-js@^0.7.18:
   version "0.7.19"