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Pseudo-sample of a core data fetch with a completion block.
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| - (void) fetchThingsWithCompletion:(void (^)(NSArray *, NSError *))completion{ | |
| [context performBlock:^{ | |
| result = [context executeFetch:... | |
| if (completion != nil){ | |
| completion(result, error); | |
| } | |
| }]; | |
| } |
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