Javascript : onHashchange Test

Question

I'm trying to check if the browser supports `onHashChange` or not to hide some code from it if not, in this way: ``` if(window.onhashchange){ ...code... } else { ...other code... } ``` I tried this too: ``` if(typeof window.onhashchange === "function"){ alert("Supports"); } else { alert("Doesn't Supports"); } ``` As described on Quirksmode this should work but if I do an `alert` for example in `true state` in `Safari` than alerts me but Safari is not supporting `onHashChange` :S What's the problem with it? If I'm not on the right way how should I check it?

Accepted Answer

You can detect this event by using the `in` operator:

```
if ("onhashchange" in window) {
  //...
}
```

Javascript : onHashchange Test

Solution

Problem