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NSNotificationCenter addObserver in Swift
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It's the same as the Objective-C API, but uses Swift's syntax.
Swift 4.2 & Swift 5:
NotificationCenter.default.addObserver(
self,
selector: #selector(self.batteryLevelChanged),
name: UIDevice.batteryLevelDid...
_csv.Error: field larger than field limit (131072)
I have a script reading in a csv file with very huge fields:
8 Answers
8
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How to send an email with Gmail as provider using Python?
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edited Apr 13 '12 at 20:05
answered Apr 13 '12 at 19:57
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How can I cast int to enum?
...e foo.ToString().Contains(",") check is necessary for enumerations marked with an [Flags] attribute
if (!Enum.IsDefined(typeof(YourEnum), foo) && !foo.ToString().Contains(","))
{
throw new InvalidOperationException($"{yourString} is not an underlying value of the YourEnum enumeration.")
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Why does GCC generate such radically different assembly for nearly the same C code?
While writing an optimized ftol function I found some very odd behaviour in GCC 4.6.1 . Let me show you the code first (for clarity I marked the differences):
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How to validate an email address in JavaScript
...ail address:</p>
<input id='email'>
<button type='submit' id='validate'>Validate!</button>
</form>
<h2 id='result'></h2>
share
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improve thi...
Objective-C categories in static library
...go to the application that is linking against the library (not the library itself) and click the project in the Project Navigator, click your app's target, then build settings, then search for "Other Linker Flags", click the + button, and add '-ObjC'. '-all_load' and '-force_load' are no longer need...
Is there an equivalent to CTRL+C in IPython Notebook in Firefox to break cells that are running?
I've started to use the IPython Notebook and am enjoying it. Sometimes, I write buggy code that takes massive memory requirements or has an infinite loop. I find the "interrupt kernel" option sluggish or unreliable, and sometimes I have to restart the kernel, losing everything in memory.
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Getting a better understanding of callback functions in JavaScript
...erstand passing in a function to another function as a callback and having it execute, but I'm not understanding the best implementation to do that. I'm looking for a very basic example, like this:
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Understanding the difference between Object.create() and new SomeFunction()
...on the Object.create() method in JavaScript, and am trying to deduce how it is different from creating a new instance of an object with new SomeFunction() , and when you would want to use one over the other.
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