From ab20beddea5ca38eec3b7b3a4a14dc3e4e5df5e5 Mon Sep 17 00:00:00 2001
From: Brent Vatne <brentvatne@gmail.com>
Date: Wed, 31 Oct 2018 19:23:44 -0700
Subject: [PATCH] Fix linting and typo

---
 .../stack/example/src/HeaderBackgrounds.js    |  4 ++--
 packages/stack/example/src/HeaderPreset.js    |  2 +-
 packages/stack/example/src/StackWithDrawer.js |  2 +-
 .../views/Header/HeaderStyleInterpolator.js   |  2 --
 .../src/views/StackView/StackViewLayout.js    | 20 ++++++++-----------
 5 files changed, 12 insertions(+), 18 deletions(-)

diff --git a/packages/stack/example/src/HeaderBackgrounds.js b/packages/stack/example/src/HeaderBackgrounds.js
index 5910d47f..31552084 100644
--- a/packages/stack/example/src/HeaderBackgrounds.js
+++ b/packages/stack/example/src/HeaderBackgrounds.js
@@ -1,4 +1,4 @@
-import React, { Component } from 'react';
+import React } from 'react';
 import { StyleSheet, View, Text } from 'react-native';
 import { createStackNavigator } from 'react-navigation-stack';
 
@@ -71,7 +71,7 @@ function createHeaderBackgroundExample(options = {}) {
         },
       },
       News: {
-        screen: ({ navigation }) => (
+        screen: () => (
           <View style={styles.container}>
             <Text style={styles.tips} onPress={() => {}}>
               News Screen
diff --git a/packages/stack/example/src/HeaderPreset.js b/packages/stack/example/src/HeaderPreset.js
index e3a6ea66..4884993b 100644
--- a/packages/stack/example/src/HeaderPreset.js
+++ b/packages/stack/example/src/HeaderPreset.js
@@ -1,5 +1,5 @@
 import * as React from 'react';
-import { Button, ScrollView, StatusBar } from 'react-native';
+import { Button, StatusBar } from 'react-native';
 import { SafeAreaView } from '@react-navigation/native';
 import { createStackNavigator } from 'react-navigation-stack';
 
diff --git a/packages/stack/example/src/StackWithDrawer.js b/packages/stack/example/src/StackWithDrawer.js
index adf881cf..3d0a1b36 100644
--- a/packages/stack/example/src/StackWithDrawer.js
+++ b/packages/stack/example/src/StackWithDrawer.js
@@ -41,7 +41,7 @@ const Drawer = createDrawerNavigator(
   },
   {
     contentComponent: props => <Menu {...props} />,
-    navigationOptions: { title: 'Example' }
+    navigationOptions: { title: 'Example' },
   }
 );
 
diff --git a/packages/stack/src/views/Header/HeaderStyleInterpolator.js b/packages/stack/src/views/Header/HeaderStyleInterpolator.js
index cb80380a..ae4ed1ea 100644
--- a/packages/stack/src/views/Header/HeaderStyleInterpolator.js
+++ b/packages/stack/src/views/Header/HeaderStyleInterpolator.js
@@ -1,8 +1,6 @@
 import { Dimensions, I18nManager } from 'react-native';
 import getSceneIndicesForInterpolationInputRange from '../../utils/getSceneIndicesForInterpolationInputRange';
 
-const EPS = 1e-5;
-
 function hasHeader(scene) {
   if (!scene) {
     return true;
diff --git a/packages/stack/src/views/StackView/StackViewLayout.js b/packages/stack/src/views/StackView/StackViewLayout.js
index b1f774fb..fbc7760a 100644
--- a/packages/stack/src/views/StackView/StackViewLayout.js
+++ b/packages/stack/src/views/StackView/StackViewLayout.js
@@ -43,13 +43,9 @@ const EaseInOut = Easing.inOut(Easing.ease);
 /**
  * Enumerate possible values for validation
  */
-const HEADER_LAYOUT_PRESET_VALUES = ['center', 'left'];
-const HEADER_TRANSITION_PRESET_VALUES = ['fade-in-place', 'uikit'];
-const HEADER_BACKGROUND_TRANSITION_PRESET_VALUES = [
-  'toggle',
-  'fade',
-  'translate',
-];
+const HEADER_LAYOUT_PRESET = ['center', 'left'];
+const HEADER_TRANSITION_PRESET = ['fade-in-place', 'uikit'];
+const HEADER_BACKGROUND_TRANSITION_PRESET = ['toggle', 'fade', 'translate'];
 
 /**
  * The max duration of the card animation in milliseconds after released gesture.
@@ -655,7 +651,7 @@ class StackViewLayout extends React.Component {
     const { headerBackgroundTransitionPreset } = this.props;
     if (headerBackgroundTransitionPreset) {
       if (
-        HEADER_BACKGROUND_TRANSITION_PRESET_VALUES.includes(
+        HEADER_BACKGROUND_TRANSITION_PRESET.includes(
           headerBackgroundTransitionPreset
         )
       ) {
@@ -694,13 +690,13 @@ class StackViewLayout extends React.Component {
           );
         }
       }
-      if (HEADER_LAYOUT_PRESET_VALUES.includes(headerLayoutPreset)) {
+      if (HEADER_LAYOUT_PRESET.includes(headerLayoutPreset)) {
         return headerLayoutPreset;
       }
 
       if (__DEV__) {
         console.error(
-          `Invalid configuration applied for headerLayoutPreset - expected one of ${HEADER_LAYOUT_PRESET_VALUES.join(
+          `Invalid configuration applied for headerLayoutPreset - expected one of ${HEADER_LAYOUT_PRESET.join(
             ', '
           )} but received ${JSON.stringify(headerLayoutPreset)}`
         );
@@ -723,13 +719,13 @@ class StackViewLayout extends React.Component {
 
     const { headerTransitionPreset } = this.props;
     if (headerTransitionPreset) {
-      if (HEADER_TRANSITION_PRESET_VALUES.includes(headerTransitionPreset)) {
+      if (HEADER_TRANSITION_PRESET.includes(headerTransitionPreset)) {
         return headerTransitionPreset;
       }
 
       if (__DEV__) {
         console.error(
-          `Invalid configuration applied for headerTransitionPreset - expected one of ${HEADER_TRANSITION_PRESET_VALUES.join(
+          `Invalid configuration applied for headerTransitionPreset - expected one of ${HEADER_TRANSITION_PRESET.join(
             ', '
           )} but received ${JSON.stringify(headerTransitionPreset)}`
         );