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node_modules/@react-navigation/core/README.md

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+# `@react-navigation/core`
+
+Core utilities for building navigators independent of the platform.
+
+## Installation
+
+Open a Terminal in your project's folder and run,
+
+```sh
+npm install @react-navigation/core
+```
+
+## Usage
+
+A basic custom navigator bundling a router and a view looks like this:
+
+```js
+import {
+  createNavigatorFactory,
+  useNavigationBuilder,
+} from '@react-navigation/core';
+import { StackRouter } from '@react-navigation/routers';
+
+function StackNavigator({ initialRouteName, children, ...rest }) {
+  const { state, navigation, descriptors, NavigationContent } =
+    useNavigationBuilder(StackRouter, {
+      initialRouteName,
+      children,
+    });
+
+  return (
+    <NavigationContent>
+      <StackView
+        state={state}
+        navigation={navigation}
+        descriptors={descriptors}
+        {...rest}
+      />
+    </NavigationContent>
+  );
+}
+
+export default createNavigatorFactory(StackNavigator);
+```