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Cocoa Core Data efficient way to count entities
...ke a count over an Entity-Type (like SQL can do with SELECT count(1) ...). Now I just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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Android Webview - Completely Clear the Cache
...you probably want to delete cookies. Though I'm sure you found that out by now.
– NineToeNerd
Mar 3 '16 at 3:42
Need t...
How can I truncate a double to only two decimal places in Java?
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@Dev I stand corrected. I see now that DOWN does indeed have the effect of truncation for both positive and negative numbers. As seen in examples table in the doc.
– Basil Bourque
May 28 '15 at 20:42
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How do you connect localhost in the Android emulator? [duplicate]
... not working for me. I have added custom name for my site in etc/hosts now I want to access mywebapp.local URL in android simulator how can I do that
– joy
May 19 at 11:05
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Default profile in Spring 3.1
...ot set the default profile in an application.properties file. In order to know that application-prod.properties should be use you'll have to know the profile. That's what this approach does. It defines profiles outside the spring context either the web.xml (default) or via environment variable (over...
Split function equivalent in T-SQL?
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Thanks, I would also like to know. Is there an error here? I wrote this code perhaps 6 years ago and it was working OK since when.
– XOR
Mar 30 '09 at 17:21
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do { … } while (0) — what is it good for? [duplicate]
I've been seeing that expression for over 10 years now. I've been trying to think what it's good for. Since I see it mostly in #defines, I assume it's good for inner scope variable declaration and for using breaks (instead of gotos.)
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VS 2012: Scroll Solution Explorer to current file
... I use VS2015 + ReSharper on Win10 and this is the only way that works now. If you're willing to use a different shortcut, look for "SolutionExplorer.SyncWithActiveDocument" on Keyboard options.
– ScottRhee
Oct 17 '16 at 5:45
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What is a predicate in c#? [duplicate]
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public string Name { get; set; }
public int Age { get; set; }
}
Now let's say I have a List<Person> people and I want to know if there's anyone named Oscar in the list.
Without using a Predicate<Person> (or Linq, or any of that fancy stuff), I could always accomplish this by ...
What exactly are iterator, iterable, and iteration?
... @jlh why would __len__ be necessarily tied to iteration? How would knowing the length of something help you iterate over it?
– shadowtalker
Sep 19 '18 at 6:45
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