[lint] convert to single quotes

src/browser/ReactBrowserEventEmitter.js

@@ -126,7 +126,7 @@ var topEventMapping = {
 /**
  * To ensure no conflicts with other potential React instances on the page
  */
-var topListenersIDKey = "_reactListenersID" + String(Math.random()).slice(2);
+var topListenersIDKey = '_reactListenersID' + String(Math.random()).slice(2);
 
 function getListeningForDocument(mountAt) {
   // In IE8, `mountAt` is a host object and doesn't have `hasOwnProperty`

src/browser/eventPlugins/AnalyticsEventPluginFactory.js

@@ -152,7 +152,7 @@ function extractEvents(
     return null;
   }
 
-  var analyticsEventsArr = analyticsEventsStr.split(",");
+  var analyticsEventsArr = analyticsEventsStr.split(',');
   if (!analyticsData.hasOwnProperty(analyticsID)) {
     initAnalyticsDataForID(analyticsID, analyticsEventsArr);
   }

src/browser/ui/dom/Danger.js

@@ -124,7 +124,7 @@ var Danger = {
 
         } else if (__DEV__) {
           console.error(
-            "Danger: Discarding unexpected node:",
+            'Danger: Discarding unexpected node:',
             renderNode
           );
         }

src/core/ReactCompositeComponent.js

@@ -746,7 +746,7 @@ var ReactCompositeComponentMixin = assign({},
       inst.shouldComponentUpdate(nextProps, nextState, nextContext);
 
     if (__DEV__) {
-      if (typeof shouldUpdate === "undefined") {
+      if (typeof shouldUpdate === 'undefined') {
         console.warn(
           (this.getName() || 'ReactCompositeComponent') +
           '.shouldComponentUpdate(): Returned undefined instead of a ' +

src/core/ReactUpdates.js

@@ -192,7 +192,7 @@ flushBatchedUpdates = ReactPerf.measure(
  */
 function enqueueUpdate(component, callback) {
   invariant(
-    !callback || typeof callback === "function",
+    !callback || typeof callback === 'function',
     'enqueueUpdate(...): You called `setProps`, `replaceProps`, ' +
     '`setState`, `replaceState`, or `forceUpdate` with a callback that ' +
     'isn\'t callable.'

src/utils/CallbackQueue.js

@@ -60,7 +60,7 @@ assign(CallbackQueue.prototype, {
     if (callbacks) {
       invariant(
         callbacks.length === contexts.length,
-        "Mismatched list of contexts in callback queue"
+        'Mismatched list of contexts in callback queue'
       );
       this._callbacks = null;
       this._contexts = null;

src/utils/escapeTextForBrowser.js

@@ -13,11 +13,11 @@
 'use strict';
 
 var ESCAPE_LOOKUP = {
-  "&": "&",
-  ">": ">",
-  "<": "&lt;",
-  "\"": "&quot;",
-  "'": "&#x27;"
+  '&': '&amp;',
+  '>': '&gt;',
+  '<': '&lt;',
+  '"': '&quot;',
+  '\'': '&#x27;'
 };
 
 var ESCAPE_REGEX = /[&><"']/g;