Merge pull request #39 from rawilk/remove-core-js-dep

Author: rawilk

package-lock.json

@@ -26,7 +26,6 @@
   },
   "homepage": "https://vue-context.com/docs",
   "dependencies": {
-    "core-js": ">=2.6.5 <3.0.0",
     "vue-clickaway": "^2.2.2"
   },
   "devDependencies": {

package.json

@@ -1,10 +1,19 @@
-import fromPolyfill from 'core-js/library/fn/array/from';
-import isArrayPolyfill from 'core-js/library/fn/array/is-array';
+if (! Array.from) {
+    Array.from = object => {
+        'use strict';
+
+        return [].slice.call(object);
+    };
+}
+
+if (! Array.isArray) {
+    Array.isArray = arg => Object.prototype.toString.call(arg) === '[object Array]';
+}
 
 // --- Constants ---
-const arrayFrom = Array.from || fromPolyfill;
+const arrayFrom = Array.from;
 
-export const isArray = Array.isArray || isArrayPolyfill;
+export const isArray = Array.isArray;
 
 export const keyCodes = {
     ESC: 27,