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Core Data: Quickest way to delete all instances of an entity
...ar")
let deleteRequest = NSBatchDeleteRequest(fetchRequest: fetchRequest)
do {
try myPersistentStoreCoordinator.execute(deleteRequest, with: myContext)
} catch let error as NSError {
// TODO: handle the error
}
Objective-C
NSFetchRequest *request = [[NSFetchRequest alloc] initWithEntityN...
How to pick just one item from a generator?
...en in my answer, next(g). This will internally call g.__next__(), but you don't really have to worry about that, just as you usually don't care that len(a) internally calls a.__len__().
– Sven Marnach
Apr 10 '14 at 10:31
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Why is @autoreleasepool still needed with ARC?
For the most part with ARC (Automatic Reference Counting), we don't need to think about memory management at all with Objective-C objects. It is not permitted to create NSAutoreleasePool s anymore, however there is a new syntax:
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How to remove selected commit log entries from a Git repository while keeping their changes?
...selected commit log entries from a linear commit tree, so that the entries do not show in the commit log.
9 Answers
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How do you write multiline strings in Go?
Does Go have anything similar to Python's multiline strings:
9 Answers
9
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Why are there no ++ and -- operators in Python?
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It's not because it doesn't make sense; it makes perfect sense to define "x++" as "x += 1, evaluating to the previous binding of x".
If you want to know the original reason, you'll have to either wade through old Python mailing lists or ask som...
What is the proper way to use the node.js postgresql module?
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I'm the author of node-postgres. First, I apologize the documentation has failed to make the right option clear: that's my fault. I'll try to improve it. I wrote a Gist just now to explain this because the conversation grew too long for Twitter.
Using pg.connect is the way to...
What are the pros and cons to keeping SQL in Stored Procs versus Code [closed]
...rking on (C# ASP.NET Forum). At the moment, most of the database access is done by building the SQL inline in C# and calling to the SQL Server DB. So I'm trying to establish which, for this particular project, would be best.
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PHP $_SERVER['HTTP_HOST'] vs. $_SERVER['SERVER_NAME'], am I understanding the man pages correctly?
I did a lot of searching and also read the PHP $_SERVER docs . Do I have this right regarding which to use for my PHP scripts for simple link definitions used throughout my site?
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How do I import .sql files into SQLite 3?
... answered Jan 12 '10 at 13:14
Dominic RodgerDominic Rodger
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