😒 chore(dev-deps): Upgrade dependencies.

Also replace @babel/polyfill by regenerator-runtime/runtime.

README.md

@@ -6,6 +6,9 @@ Python's iterable and iterator library for JavaScript.
 See [docs](https://aureooms.github.io/js-itertools).
 Parent is [@aureooms/js-library](https://github.com/aureooms/js-library).
 
+> :warning: The code requires `regeneratorRuntime` to be defined, for instance by importing
+> [regenerator-runtime/runtime](https://www.npmjs.com/package/regenerator-runtime).
+
 ```js
 cycle( chain( [ [ 0 , 1 , 2 ] , [ 3 , 4 , 5 ] ] ) ) ; // 0 1 2 3 4 5 0 1 ...
 ```

doc/manual/usage.md

@@ -1,14 +1,16 @@
 # Usage
 
-The code needs a ES2015+ polyfill to work, for example
-[@babel/polyfill](https://babeljs.io/docs/usage/polyfill).
+> :warning: The code requires `regeneratorRuntime` to be defined, for instance by importing
+> [regenerator-runtime/runtime](https://www.npmjs.com/package/regenerator-runtime).
+
+First, require the polyfill at the entry point of your application
 ```js
-require( '@babel/polyfill' ) ;
+require( 'regenerator-runtime/runtime' );
 // or
-import '@babel/polyfill' ;
+import 'regenerator-runtime/runtime.js' ;
 ```
 
-Then
+Then, import the library where needed
 ```js
 const itertools = require( '@aureooms/js-itertools' ) ;
 // or

package.json

@@ -9,7 +9,7 @@
     ],
     "concurrency": 8,
     "require": [
-      "@babel/polyfill",
+      "regenerator-runtime/runtime",
       "@babel/register"
     ],
     "timeout": "2m"
@@ -35,11 +35,10 @@
     "@aureooms/js-compare": "1.4.5",
     "@aureooms/js-operator": "1.0.2",
     "@aureooms/js-predicate": "2.0.2",
-    "@babel/cli": "7.10.3",
-    "@babel/core": "7.10.3",
-    "@babel/polyfill": "7.10.1",
-    "@babel/preset-env": "7.10.3",
-    "@babel/register": "7.10.3",
+    "@babel/cli": "7.10.4",
+    "@babel/core": "7.10.4",
+    "@babel/preset-env": "7.10.4",
+    "@babel/register": "7.10.4",
     "ava": "3.9.0",
     "coveralls": "3.1.0",
     "esdoc": "1.1.0",
@@ -48,6 +47,7 @@
     "esdoc-standard-plugin": "1.0.0",
     "np": "6.2.5",
     "nyc": "15.1.0",
+    "regenerator-runtime": "^0.13.5",
     "xo": "0.32.1"
   },
   "files": [