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What do I have to do to get Core Data to automatically migrate models?

...AndKeys: [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption, [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil]; NSError *error; _persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectMod...
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SLF4J: Class path contains multiple SLF4J bindings

... is the version (slf4j-log4j12) applicable for all? or should we find out the version from mvn dependency:tree? – Lei Yang Nov 11 '19 at 7:07 add a...
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Create directories using make file

...ssuming a Unix-like environment. MKDIR_P = mkdir -p .PHONY: directories all: directories program directories: ${OUT_DIR} ${OUT_DIR}: ${MKDIR_P} ${OUT_DIR} This would have to be run in the top-level directory - or the definition of ${OUT_DIR} would have to be correct relative to where ...
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postgresql - replace all instances of a string within text field

In postgresql, how do I replace all instances of a string within a database column? 4 Answers ...
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Force page scroll position to top at page refresh in HTML

... This is the correct answer. The jQuery solution does not work in all cases. – Harry Stevens Dec 5 '17 at 18:52 ...
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hash function for string

... @Josepas the hash function should ideally return a size_t or other such unsigned value (such as the unsigned long in this code). The caller is responsible for taking modulo of the result to fit it to the hash table. The caller controls the table slot being hashed to; not the func...
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What is the colon operator in Ruby?

..." # false :foo.equal? :foo # true This makes comparing two symbols really fast (since only a pointer comparison is involved, as opposed to comparing all the characters like you would in a string), plus you won't have a zillion copies of the same symbol floating about. Also, unlike strings, sy...
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How should I validate an e-mail address?

...ache.commons.validator.routines.EmailValidator) (?:[a-z0-9!#$%&'*+/=?^_`{|}~-]+(?:\.[a-z0-9!#$%&'*+/=?^_`{|}~-]+)*|"(?:[\x01-\x08\x0b\x0c\x0e-\x1f\x21\x23-\x5b\x5d-\x7f]|\\[\x01-\x09\x0b\x0c\x0e-\x7f])*")@(?:(?:[a-z0-9](?:[a-z0-9-]*[a-z0-9])?\.)+[a-z0-9](?:[a-z0-9-]*[a-z0-9])?|\[(?:(?:25[0-...
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Mockito. Verify method arguments

... Important: Call verify()/capture() after using the mock. I was thinking it has to be "installed" before... – Daniel Alder Feb 21 '18 at 16:02 ...
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How to remove item from array by value? [duplicate]

...is can be a global function or a method of a custom object, if you aren't allowed to add to native prototypes. It removes all of the items from the array that match any of the arguments. Array.prototype.remove = function() { var what, a = arguments, L = a.length, ax; while (L && th...