Import babel polyfill (danvk#813)

Author: danvk

.travis.yml

@@ -1,6 +1,6 @@
 language: node_js
 node_js:
-  - "0.10"
+  - "6"
 
 sudo: false  # Use container-based architecture
 script: >

auto_tests/coverage.html

@@ -9,9 +9,6 @@
   <div id="graph"></div>
   <div id="mocha"></div>
 
-  <!-- Polyfills for PhantomJS -->
-  <script src="../node_modules/babel-core/browser-polyfill.js"></script>
-
   <!-- Mocha -->
   <script src="../node_modules/mocha/mocha.js"></script>
   <script src="../node_modules/chai/chai.js"></script>

auto_tests/runner.html

@@ -9,9 +9,6 @@
   <div id="graph"></div>
   <div id="mocha"></div>
 
-  <!-- Polyfills for PhantomJS -->
-  <script src="../node_modules/babel-core/browser-polyfill.js"></script>
-
   <!-- Mocha -->
   <script src="../node_modules/mocha/mocha.js"></script>
   <script src="../node_modules/chai/chai.js"></script>

auto_tests/tests/xhr.js

@@ -14,6 +14,8 @@
 import Dygraph from '../../src/dygraph';
 import Util from './Util';
 
+import 'core-js/es6/promise';
+
 function dygraphPromise(div, data, opts) {
   return new Promise((resolve, reject) => {
     const g = new Dygraph(div, data, opts);

package.json

@@ -60,5 +60,8 @@
   },
   "pre-commit": [
     "tests-ok"
-  ]
+  ],
+  "dependencies": {
+    "core-js": "^2.4.1"
+  }
 }

scripts/build.sh

@@ -34,7 +34,7 @@ browserify \
 # Create dist/dygraph.tmp.js.map
 cat dist/dygraph.tmp.js | exorcist --base . dist/dygraph.tmp.js.map > /dev/null
 
-header='/*! @license Copyright 2014 Dan Vanderkam (danvdk@gmail.com) MIT-licensed (http://opensource.org/licenses/MIT) */'
+header='/*! @license Copyright 2017 Dan Vanderkam (danvdk@gmail.com) MIT-licensed (http://opensource.org/licenses/MIT) */'
 
 # Create dist/dygraph.js.min{,.map}
 uglifyjs --compress --mangle \

src/dygraph.js

@@ -43,6 +43,10 @@
 
  */
 
+// Polyfills
+import 'core-js/es6/symbol';
+import 'core-js/fn/symbol/iterator';
+
 import DygraphLayout from './dygraph-layout';
 import DygraphCanvasRenderer from './dygraph-canvas';
 import DygraphOptions from './dygraph-options';