key example for item in nsdictionary array objective c

Question

I have an array of dictionaries containing some values and keys.suppose keys k1,k2,k3,k4 etc... from this array I need to find object for key k1 for which I know the object of key k3 of the same dictionary. Is there any method without using iteration that means by using predicates or keyvalue coding(KVC)

score 1 · Accepted Answer · answered Sep 21 '12 at 10:33

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This is not possible without searching the array, since k3 doesn't have any way of knowing it is used as a key in one of the dictionaries. In fact, it could be used as a key in more than one dictionary.

answered Sep 21 '12 at 10:33

waldrumpus

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not with that key the object of that key. Its unique because its an id – Johnykutty Sep 21 '12 at 10:35
@Johnykutty In your case, the objects may be unique, but in general, they need not be. Thus, there is no language mechanism to solve your problem. – waldrumpus Sep 21 '12 at 10:47

score 0 · Answer 2 · answered Sep 21 '12 at 10:28

0

No, you'll need to iterate over the array, check for key k3and return k1if you've found a match.

answered Sep 21 '12 at 10:28

Asciiom

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key example for item in nsdictionary array objective c

2 Answers2