check for key of control, v1.0.0-alpha.12

retejs · Oct 19, 2018 · f26bfeb · f26bfeb
1 parent d114ed3
commit f26bfeb
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "rete",
-  "version": "1.0.0-alpha.11",
+  "version": "1.0.0-alpha.12",
   "description": "JavaScript framework",
   "main": "build/rete.min.js",
   "types": "src/index.d.ts",

diff --git a/src/control.js b/src/control.js
@@ -4,8 +4,10 @@ export class Control {
 
     constructor(key) {
         if (this.constructor === Control)
-            throw new TypeError('Can not construct abstract class.');
-
+            throw new TypeError('Can not construct abstract class');
+        if (!key)
+            throw new Error('The key parameter is missing in super() of Control ');
+
         this.key = key;
         this.data = {};
         this.parent = null;