[GitHub] [cordova-android] breautek commented on issue #795: document.removeEventListener is invalid

[GitBox <gi...@apache.org>]

breautek commented on issue #795: document.removeEventListener is invalid
URL: https://github.com/apache/cordova-android/issues/795#issuecomment-517266533
 
 
   ```javascript
   document.addEventListener("backbutton", () => {
       console.log("addEventListener backbutton ############");
   });
   
   document.removeEventListener("backbutton", () => {
       console.log("removeEventListener backbutton ############");
   });
   ```
   
   In javascript, you are creating two different functions here, if you want to remove a listener, you need to keep a reference to it.
   
   ```javascript
   var listener =  () => {
       console.log("addEventListener backbutton ############");
   };
   
   document.addEventListener("backbutton", listener);
   
   // ... sometime later?
   
   document.removeEventListener("backButton", listener);
   ```

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