Misc flow and lint fixes

src/modules/ReactNativePropRegistry/index.js

@@ -20,7 +20,7 @@ const createKey = id => `${prefix}-${id}`;
 
 export default class ReactNativePropRegistry {
   static register(object: Object): number {
-    let id = uniqueID++;
+    const id = uniqueID++;
     if (process.env.NODE_ENV !== 'production') {
       Object.freeze(object);
     }

src/modules/ScrollResponder/index.js

@@ -15,13 +15,10 @@ import Dimensions from '../../apis/Dimensions';
 import findNodeHandle from '../findNodeHandle';
 import invariant from 'fbjs/lib/invariant';
 import Platform from '../../apis/Platform';
-import React from 'react';
 import TextInputState from '../../components/TextInput/TextInputState';
 import UIManager from '../../apis/UIManager';
 import warning from 'fbjs/lib/warning';
 
-// type Component = React.Component
-
 /**
  * Mixin that can be integrated in order to handle scrolling that plays well
  * with `ResponderEventPlugin`. Integrate with your platform specific scroll
@@ -102,7 +99,7 @@ import warning from 'fbjs/lib/warning';
 
 const emptyObject = {};
 
-var IS_ANIMATING_TOUCH_START_THRESHOLD_MS = 16;
+const IS_ANIMATING_TOUCH_START_THRESHOLD_MS = 16;
 
 type State = {
   isTouching: boolean,
@@ -113,7 +110,7 @@ type State = {
 };
 type Event = Object;
 
-var ScrollResponderMixin = {
+const ScrollResponderMixin = {
   // mixins: [Subscribable.Mixin],
   scrollResponderMixinGetInitialState: function(): State {
     return {
@@ -228,7 +225,7 @@ var ScrollResponderMixin = {
    * @param {SyntheticEvent} e Event.
    */
   scrollResponderHandleTouchEnd: function(e: Event) {
-    var nativeEvent = e.nativeEvent;
+    const nativeEvent = e.nativeEvent;
     this.state.isTouching = nativeEvent.touches.length !== 0;
     this.props.onTouchEnd && this.props.onTouchEnd(e);
   },
@@ -241,7 +238,7 @@ var ScrollResponderMixin = {
 
     // By default scroll views will unfocus a textField
     // if another touch occurs outside of it
-    var currentlyFocusedTextInput = TextInputState.currentlyFocusedField();
+    const currentlyFocusedTextInput = TextInputState.currentlyFocusedField();
     if (
       !this.props.keyboardShouldPersistTaps &&
       currentlyFocusedTextInput != null &&
@@ -340,9 +337,9 @@ var ScrollResponderMixin = {
    * a touch has just started or ended.
    */
   scrollResponderIsAnimating: function(): boolean {
-    var now = Date.now();
-    var timeSinceLastMomentumScrollEnd = now - this.state.lastMomentumScrollEndTime;
-    var isAnimating =
+    const now = Date.now();
+    const timeSinceLastMomentumScrollEnd = now - this.state.lastMomentumScrollEndTime;
+    const isAnimating =
       timeSinceLastMomentumScrollEnd < IS_ANIMATING_TOUCH_START_THRESHOLD_MS ||
       this.state.lastMomentumScrollEndTime < this.state.lastMomentumScrollBeginTime;
     return isAnimating;
@@ -457,11 +454,11 @@ var ScrollResponderMixin = {
     width: number,
     height: number
   ) {
-    var keyboardScreenY = Dimensions.get('window').height;
+    let keyboardScreenY = Dimensions.get('window').height;
     if (this.keyboardWillOpenTo) {
       keyboardScreenY = this.keyboardWillOpenTo.endCoordinates.screenY;
     }
-    var scrollOffsetY = top - keyboardScreenY + height + this.additionalScrollOffset;
+    let scrollOffsetY = top - keyboardScreenY + height + this.additionalScrollOffset;
 
     // By default, this can scroll with negative offset, pulling the content
     // down so that the target component's bottom meets the keyboard's top.
@@ -548,7 +545,7 @@ var ScrollResponderMixin = {
   }
 };
 
-var ScrollResponder = {
+const ScrollResponder = {
   Mixin: ScrollResponderMixin
 };
 

src/modules/multiplyStyleLengthValue/index.js

@@ -6,9 +6,9 @@ const isNumeric = n => {
   return !isNaN(parseFloat(n)) && isFinite(n);
 };
 
-const multiplyStyleLengthValue = (value: String | Number, multiple) => {
+const multiplyStyleLengthValue = (value: string | number, multiple) => {
   if (typeof value === 'string') {
-    const number = parseFloat(value, 10) * multiple;
+    const number = parseFloat(value) * multiple;
     const unit = getUnit(value);
     return `${number}${unit}`;
   } else if (isNumeric(value)) {

src/modules/processColor/index.js

@@ -1,6 +1,18 @@
+/**
+ * Copyright (c) 2016-present, Nicolas Gallagher.
+ * Copyright (c) 2015-present, Facebook, Inc.
+ * All rights reserved.
+ *
+ * This source code is licensed under the BSD-style license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @providesModule processColor
+ * @flow
+ */
+
 import normalizeColor from 'normalize-css-color';
 
-const processColor = (color, opacity = 1) => {
+const processColor = (color: ?(string | number), opacity: number = 1) => {
   if (
     color === undefined ||
     color === null ||

src/modules/requestIdleCallback/index.js

@@ -13,7 +13,7 @@ const _requestIdleCallback = function(cb) {
   }, 1);
 };
 
-const _cancelIdleCallback = function(id) {
+const _cancelIdleCallback = function(id: number) {
   clearTimeout(id);
 };