Object.watch() for all browsers?

Question

Please note that Object.Watch and Object.Observe are both deprecated now (as of Jun 2018).

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I was looking for an easy way to monitor an object

Answer 1

That plugin simply uses a timer/interval to repeatedly check for changes on an object. Maybe good enough but personally I would like more immediacy as an observer.

Here's an attempt at bringing watch/unwatch to IE: http://webreflection.blogspot.com/2009/01/internet-explorer-object-watch.html.

It does change the syntax from the Firefox way of adding observers. Instead of :

var obj = {foo:'bar'};
obj.watch('foo', fooChanged);

You do:

var obj = {foo:'bar'};
var watcher = createWatcher(obj);
watcher.watch('foo', fooChanged);

Not as sweet, but as an observer you are notified immediately.