Use fat arrow functions `const foo = () => { ... };` for callbacks

[mirror_novnc.git] / karma.conf.js

diff --git a/karma.conf.js b/karma.conf.js
index 5b9da9f1533ab0641fb38735330e4a93e7ec05af..f0a134355d86b72d2a607708ddf9bab99fb88fea 100644 (file)
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -1,29 +1,27 @@
 // Karma configuration
 
-module.exports = function(config) {
-  var customLaunchers = {};
-  var browsers = [];
-  var useSauce = false;
+module.exports = (config) => {
+  const customLaunchers = {};
+  let browsers = [];
+  let useSauce = false;
+  let transpileToES5 = ['internet explorer'].includes(process.env.TEST_BROWSER_NAME);
 
   // use Sauce when running on Travis
   if (process.env.TRAVIS_JOB_NUMBER) {
     useSauce = true;
-  }
+  } 
 
   if (useSauce && process.env.TEST_BROWSER_NAME && process.env.TEST_BROWSER_NAME != 'PhantomJS') {
-    var names = process.env.TEST_BROWSER_NAME.split(',');
-    var platforms = process.env.TEST_BROWSER_OS.split(',');
-    var versions = [];
-    if (process.env.TEST_BROWSER_VERSION) {
-      versions = process.env.TEST_BROWSER_VERSION.split(',');
-    } else {
-      versions = [null];
-    }
-
-    for (var i = 0; i < names.length; i++) {
-      for (var j = 0; j < platforms.length; j++) {
-        for (var k = 0; k < versions.length; k++) {
-          var launcher_name = 'sl_' + platforms[j].replace(/[^a-zA-Z0-9]/g, '') + '_' + names[i];
+    const names = process.env.TEST_BROWSER_NAME.split(',');
+    const platforms = process.env.TEST_BROWSER_OS.split(',');
+    const versions = process.env.TEST_BROWSER_VERSION
+      ? process.env.TEST_BROWSER_VERSION.split(',')
+      : [null];
+
+    for (let i = 0; i < names.length; i++) {
+      for (let j = 0; j < platforms.length; j++) {
+        for (let k = 0; k < versions.length; k++) {
+          let launcher_name = 'sl_' + platforms[j].replace(/[^a-zA-Z0-9]/g, '') + '_' + names[i];
           if (versions[k]) {
             launcher_name += '_' + versions[k];
           }
@@ -48,7 +46,7 @@ module.exports = function(config) {
     browsers = [];
   }
 
-  var my_conf = {
+  const my_conf = {
 
     // base path that will be used to resolve all patterns (eg. files, exclude)
     basePath: '',
@@ -103,6 +101,7 @@ module.exports = function(config) {
 
     babelPreprocessor: {
       options: {
+        presets: transpileToES5 ? ['es2015'] : [],
         plugins: ['transform-es2015-modules-amd', 'syntax-dynamic-import'],
         sourceMap: 'inline',
       },