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Cocoa Core Data efficient way to count entities
... the total number of instances of an entity in Core Data:
let context = (UIApplication.sharedApplication().delegate as! AppDelegate).managedObjectContext
let fetchRequest = NSFetchRequest(entityName: "MyEntity")
let count = context.countForFetchRequest(fetchRequest, error: nil)
I tested this in the...
How to connect to my http://localhost web server from Android Emulator
...red Apr 27 '11 at 15:13
Primal PappachanPrimal Pappachan
23.3k1818 gold badges6363 silver badges8383 bronze badges
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What does an exclamation mark mean in the Swift language?
...?
As far as I can work out (this is very new to me, too)...
The term "wrapped" implies we should think of an Optional variable as a present, wrapped in shiny paper, which might (sadly!) be empty.
When "wrapped", the value of an Optional variable is an enum with two possible values (a little like...
How do I move files in node.js?
...o use the module.exports = function { } style. do I copy this code into my app itself where I already have var fs = require('fs'); and then call fs.move(oldFile, newFile, function(err){ .... }) instead of fs.rename ?
– Curious101
Apr 12 '19 at 4:56
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Can “this” ever be null in Java?
...like foo.bar() would be thrown when foo is discovered to be null. it does happen before entering the method, but the real story is that there is no method to attempt to call.
– Claudiu
Sep 24 '10 at 17:34
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How to enable Bootstrap tooltip on disabled button?
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You can wrap the disabled button and put the tooltip on the wrapper:
<div class="tooltip-wrapper" data-title="Dieser Link führt zu Google">
<button class="btn btn-default" disabled>button disabled</button>
</div>
If the wrapper has display:inline then the t...
Disable back button in android
How to disable back button in android while logging out the application?
17 Answers
17...
How exactly does the “Specific Version” property of an assembly reference work in Visual Studio?
...out to learn as much as possible about how the property works. Even SO, it appears to me, does not have all the answers, so here is my attempt at self-answering the question:
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Medium-size Clojure sample application?
Is there a medium-sized Clojure sample application that could be used as a "best-practices" example, and a good way to see what such an application would look like in terms of code and code organization? A web application would be particularly interesting to me, but most important is that the progra...
Backbone View: Inherit and extend events from parent
...ts merging within itself. That being said, I wouldn't have thought of this approach, and it's always nice to be forced to look at things in a different way :)
– EleventyOne
Jan 4 '14 at 6:02
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