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Dependency Injection vs Factory Pattern
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How do I set a variable to the output of a command in Bash?
... Curly braces can be used when the variable is immediately followed by more characters which could be interpreted as part of the variable name. e.g. ${OUTPUT}foo. They are also required when performing inline string operations on the variable, such as ${OUTPUT/foo/bar}
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Can you attach a UIGestureRecognizer to multiple views?
...sture recognizer once, I'm not sure if this is a bug or it just needs some more documentation.
12 Answers
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What does the “__block” keyword mean?
... done inside the block are also visible outside of it.
For an example and more info, see The __block Storage Type in Apple's Blocks Programming Topics.
The important example is this one:
extern NSInteger CounterGlobal;
static NSInteger CounterStatic;
{
NSInteger localCounter = 42;
__bloc...
How to overcome “datetime.datetime not JSON serializable”?
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Pry: show me the stack
... enter this (bind 'B' send-keys '...^M'), using a "reject" instead so it's more generic: caller.reject {|x| x["vendor/bundle"] || x["/.rbenv/versions/"] }
– hoodslide
Jul 9 '15 at 19:15
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What does the “@” symbol do in Powershell?
...tialise arrays. What exactly does the @ symbol denote and where can I read more about it?
5 Answers
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PHP - iterate on string characters
...oreach ($array as $char) {
echo $char;
}
You can check the PHP docs for more information: str_split
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Application Loader stuck at “Authenticating with the iTunes store” when uploading an iOS app
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thank you, very much! None of the more upvoted and accepted solutions worked for me, but this one does. Apple needs to learn how to properly communicate error messages. Stuck on authenticating is not useful at all.
– Domen Grabec
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Event listener for when element becomes visible?
...available), I believe that a request to change the correct answer would be more appropriate than a downvote. In any case, thanks for the heads-up :)
– maltalef
Jan 13 '16 at 21:31
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