objective c - Detect any changes in NSMutableDictionary/NSMutableArray -


i building app exposes dictionary webview javascriptcore. it's options content of page. dictionary multiple (and differing) keys , values can dictionaries or array (in addition strings, etc).

with non-dictionary values it's straight forward, overriding setter, however, isn't appropriate here. when value changes need save it, having trouble nested values.

i have looked in kvo, however, allows single key. this question seems promising, using javascriptcore 'convert' dictionary javascript object may need keep instance of nsdictionary. changing child dictionaries , arrays required far ideal.

i try looping on each key , observing each on , child keys, won't work new keys.

if there method in (horrendously documented) javascriptcore might excellent too.


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