Remove Object.keys and replace with compatible method

Author: lindelof

package.json

@@ -1,6 +1,6 @@
 {
   "name": "particles-bg-vue",
-  "version": "1.2.1",
+  "version": "1.2.2",
   "description": "Vue.js component for particles backgrounds",
   "author": "creotip@gmail.com",
   "license": "MIT",

src/particles-bg/index.js

@@ -1,18 +1,19 @@
-import ParticlesBg from './ParticlesBg'
+import ParticlesBg from "./ParticlesBg";
 
 const components = {
-  ParticlesBg
-}
+  ParticlesBg: ParticlesBg
+};
 
-const install = function (Vue) {
-  if (install.installed) return
-  Object.keys(components).forEach(key => {
-    Vue.component(components[key].name, components[key])
-  })
-}
+const install = function(Vue) {
+  if (install.installed) return;
+
+  for (let key in components) {
+    Vue.component(components[key].name, components[key]);
+  }
+};
 
-if (typeof window !== 'undefined' && window.Vue) {
-  install(window.Vue)
+if (typeof window !== "undefined" && window.Vue) {
+  install(window.Vue);
 }
 
 const VueParticlesBg = {
@@ -21,4 +22,4 @@ const VueParticlesBg = {
 };
 
 export { ParticlesBg };
-export default VueParticlesBg;
+export default VueParticlesBg;