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Traits vs. interfaces
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240
An interface defines a set of methods that the implementing class must implement.
When a trait ...
How do you add an in-app purchase to an iOS application?
...roduct = nil;
int count = [response.products count];
if(count > 0){
validProduct = [response.products objectAtIndex:0];
NSLog(@"Products Available!");
[self purchase:validProduct];
}
else if(!validProduct){
NSLog(@"No products available");
/...
hasNext in Python iterators?
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109
No, there is no such method. The end of iteration is indicated by an exception. See the documen...
How can I check if an element exists in the visible DOM?
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alexalex
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What are all the different ways to create an object in Java?
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kamacikamaci
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10
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How to extract custom header value in Web API message handler?
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10 Answers
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Custom exception type
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edited Jul 4 '18 at 16:02
Ivan
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answered Jul 1...
How to use OpenFileDialog to select a folder?
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406
Basically you need the FolderBrowserDialog class:
Prompts the user to select a folder. This...
Tab key == 4 spaces and auto-indent after curly braces in Vim
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1910
As has been pointed out in a couple of answers below, the preferred method now is NOT to use sma...
Determine on iPhone if user has enabled push notifications
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300
Call enabledRemoteNotificationsTypes and check the mask.
For example:
UIRemoteNotificationT...