extension Class

Author: marcog83

bower.json

@@ -1,6 +1,6 @@
 {
   "name": "robojs",
-  "version": "5.1.4",
+  "version": "5.1.5",
 
   "license": "MIT",
 

dist/robojs.js

@@ -249,8 +249,8 @@
         }
 
         function emit(value) {
-            var length = slots ? slots.length : 0;
-            for (var i = 0; i < length; i++) {
+            if (!slots) slots = [];
+            for (var i = 0; i < slots.length; i++) {
                 var _slots$i = slots[i],
                     listener = _slots$i.listener,
                     scope = _slots$i.scope,

dist/robojs.min.js

@@ -1,6 +1,6 @@
 {
   "name": "robojs",
-  "version": "5.1.4",
+  "version": "5.1.5",
   "license": "MIT",
   "main": "src/core/robojs.js",
   "scripts": {
@@ -16,6 +16,8 @@
     "babel-plugin-transform-es2015-modules-umd": "^6.24.1",
     "babel-preset-import-export": "^1.0.2",
     "babel-preset-latest": "^6.24.0",
-    "rollup": "^0.41.6"
+    "rollup": "^0.41.6",
+    "uglify-js": "^3.0.19"
+
   }
 }

package.json

@@ -36,8 +36,8 @@ export default function Signal() {
 
 
     function emit(value) {
-        const length = slots ? slots.length : 0;
-        for (let i = 0; i < length; i++) {
+        if (!slots) slots = [];
+        for (let i = 0; i < slots.length; i++) {
             let {listener, scope, once} = slots[i];
             once && disconnect(listener, scope);
             listener.call(scope, value);