Depending on how I change the property in an object of an observableArray, the property value get updated or not in the HTML. I wish I could understand why…
I simplified my code as much as I could to show the difference:
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one that work: updating the whole object
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the other that Fails: updating only the method of that object
In both case I force the update with valueHasMutated.
Your val member needs to be an observable
http://jsfiddle.net/fCXAq/2/