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Do I set properties to nil in dealloc when using ARC?
.... Nilling out properties means calling setters, which may invoke code that it shouldn't touch in dealloc (e.g. if your class, or a subclass, overrides the setter). Similarly it may trigger KVO notifications. Releasing the ivar instead avoids these undesired behaviors.
In ARC, the system automatical...
Error - Unable to access the IIS metabase
...ppropriate location above in Windows Explorer. You will be blocked access with a popup which says:
"You don't have access to this folder - Click continue to permanently get access to this folder"
Click 'continue' for this folder, and with the Export folder underneath. I changed the shortcut b...
How to prove that a problem is NP complete?
I have problem with scheduling. I need to prove that the problem is NP complete. What can be the methods to prove it NP complete?
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How to add a right button to a UINavigationController?
... trying to add a refresh button to the top bar of a navigation controller with no success.
21 Answers
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How to import Google Web Font in CSS file?
I'm working with a CMS which I only have access to the CSS file. So, I can't include anything thing in the HEAD of the document. I was wondering if there was a way to import the web font from within the CSS file?
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Resolve build errors due to circular dependency amongst classes
I often find myself in a situation where I am facing multiple compilation/linker errors in a C++ project due to some bad design decisions (made by someone else :) ) which lead to circular dependencies between C++ classes in different header files (can happen also in the same file) . But fortunately...
Queue.Queue vs. collections.deque
...tended as a datastructure. That's why Queue.Queue has methods like put_nowait(), get_nowait(), and join(), whereas collections.deque doesn't. Queue.Queue isn't intended to be used as a collection, which is why it lacks the likes of the in operator.
It boils down to this: if you have multiple thread...
Convert one date format into another in PHP
...e the y-m-d-h-i-s format.
PHP 5.3 and up
Use DateTime::createFromFormat. It allows you to specify an exact mask - using the date() syntax - to parse incoming string dates with.
PHP 5.2 and lower
You will have to parse the elements (year, month, day, hour, minute, second) manually using substr() ...
Where should @Service annotation be kept? Interface or Implementation?
...or the injection point type.
claim 2: The purpose of an interface is that it define a contract that can been implemented by several implementations. On the other side you have your injection point (@Autowired). Having just one interface and only one class that implement it, is (IMHO) useless, and v...
How to remove the left part of a string?
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I was going to write the solution for python 3.9 but it seems you have mentioned python 3.9 solutions everywhere. :)
– Pygirl
Jun 17 at 6:51
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