fix(ValueAttributeObserver): notify only when changing element value

fixes aurelia/framework#288
aurelia · Jan 6, 2016 · 6ac4d42 · 6ac4d42
1 parent 1c2e580
commit 6ac4d42
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/src/element-observation.js b/src/element-observation.js
@@ -97,10 +97,11 @@ export class ValueAttributeObserver {
   }
 
   setValue(newValue) {
-    this.element[this.propertyName] =
-      (newValue === undefined || newValue === null) ? '' : newValue;
-
-    this.notify();
+    newValue = newValue === undefined || newValue === null ? '' : newValue;
+    if (this.element[this.propertyName] !== newValue) {
+      this.element[this.propertyName] = newValue;
+      this.notify();
+    }
   }
 
   notify() {