(fix) - correct Context types for useContext (#3018)

* fix: refactor for using useContext with TS * fix: praect does not support .createContext * chore: resolve code inconsistency * refactor: the added type can be removed * Changelog update
apollographql · May 28, 2019 · 028333e · 028333e
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diff --git a/Changelog.md b/Changelog.md
@@ -7,6 +7,9 @@
 - Make sure `MockedProvider` is using the proper CJS/ESM bundle, when 
   referencing `ApolloProvider`.  <br/>
   [@jure](https://github.com/jure) in [#3029](https://github.com/apollographql/react-apollo/pull/3029).
+- Adjust the `ApolloContext` definition to play a bit more nicely with 
+  `React.createContext` types.  <br/>
+  [@JoviDeCroock](https://github.com/JoviDeCroock) in [#3018](https://github.com/apollographql/react-apollo/pull/3018)
 
 ### Bug Fixes
 

diff --git a/src/ApolloContext.ts b/src/ApolloContext.ts
@@ -7,6 +7,5 @@ export interface ApolloContextValue {
   operations?: Map<string, { query: DocumentNode; variables: any }>;
 }
 
-export const ApolloContext = React.createContext
-  ? React.createContext<ApolloContextValue | undefined>(undefined)
-  : null;
+export const ApolloContext = React.createContext &&
+  React.createContext<ApolloContextValue | undefined>(undefined)