Enable ES6/ES2015

JitsiConference.js

@@ -412,7 +412,7 @@ JitsiConference.prototype.addTrack = function (track) {
         track.videoType !== VideoType.DESKTOP)) {
         // Report active device to statistics
         var devices = RTC.getCurrentlyAvailableMediaDevices();
-        device = devices.find(function (d) {
+        var device = devices.find(function (d) {
             return d.kind === track.getTrack().kind + 'input'
                 && d.label === track.getTrack().label;
         });

JitsiMeetJS.js

@@ -337,7 +337,4 @@ var LibJitsiMeet = {
     }
 };
 
-//Setups the promise object.
-window.Promise = window.Promise || require("es6-promise").Promise;
-
 module.exports = LibJitsiMeet;

modules/statistics/RTPStatsCollector.js

@@ -504,7 +504,7 @@ StatsCollector.prototype.processStatsReport = function () {
     }
 
     var getStatValue = this._getStatValue;
-    byteSentStats = {};
+    var byteSentStats = {};
 
     for (var idx in this.currentStatsReport) {
         var now = this.currentStatsReport[idx];

modules/xmpp/SDPUtil.js

@@ -2,7 +2,7 @@ var logger = require("jitsi-meet-logger").getLogger(__filename);
 var RTCBrowserType = require("../RTC/RTCBrowserType");
 
 
-SDPUtil = {
+var SDPUtil = {
     filter_special_chars: function (text) {
         // XXX Neither one of the falsy values (e.g. null, undefined, false,
         // "", etc.) "contain" special chars.

modules/xmpp/TraceablePeerConnection.js

@@ -488,7 +488,7 @@ ssrcInfo) {
         // Removing all cached ssrcs for the streams that are removed or
         // muted.
         if(ssrcInfo && this.replaceSSRCs[ssrcInfo.mtype]) {
-            for(i = 0; i < this.replaceSSRCs[ssrcInfo.mtype].length; i++) {
+            for(var i = 0; i < this.replaceSSRCs[ssrcInfo.mtype].length; i++) {
                 var op = this.replaceSSRCs[ssrcInfo.mtype][i];
                 if(op.type === "unmute" &&
                     op.ssrc.ssrcs.join("_") ===

package.json

@@ -23,7 +23,6 @@
     "async": "0.9.0",
     "retry": "0.6.1",
     "jssha": "1.5.0",
-    "es6-promise": "*",
     "jitsi-meet-logger": "git+https://github.com/jitsi/jitsi-meet-logger.git",
     "strophe": "^1.2.2",
     "strophejs-plugins": "^0.0.6",
@@ -31,6 +30,9 @@
     "current-executing-script": "*"
   },
   "devDependencies": {
+    "babelify": "*",
+    "babel-preset-es2015": "*",
+    "babel-polyfill": "*",
     "browserify": "11.1.x",
     "jshint": "^2.8.0",
     "precommit-hook": "^3.0.0",
@@ -38,6 +40,16 @@
     "uglify-js": "2.4.24",
     "watchify": "^3.7.0"
   },
+  "babel": {
+    "presets": ["es2015"]
+  },
+  "browserify": {
+    "transform": [
+      ["babelify", {
+        "ignore": ["node_modules", "modules/RTC/adapter.screenshare.js"]
+      }]
+    ]
+  },
   "scripts": {
     "install": "npm run browserify && npm run version && npm run uglifyjs",