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In StringCat's +initialize method, one says that a change to "parts" triggers a change to "catenation".
What I gather from this is that there is no way to tell the KVO mechanism that the _content_ of an array member has changed.
There seems to be no way to express from-many value dependencies like concatenations.
|>KVO on array values -- member edit can't trigger? (From: Fritz Anderson <email@hidden>)|
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