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Weak and strong property setter attributes in Objective-C
... //default
weak
retain
assign //default
unsafe_unretained
copy
readonly
readwrite //default
so below is the detailed article link where you can find above mentioned all attributes, that will defiantly help you.
Many thanks to all the people who give best answers here!!
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Service vs IntentService in the Android platform
... shouldn't be too long. If you need to perform long tasks, you must use threads within Service.
The IntentService can be used in long tasks usually with no communication to Main Thread. If communication is required, can use Main Thread handler or broadcast intents. Another case of use is when call...
Generating a UUID in Postgres for Insert statement?
...he documentation for contrib modules in 8.4.
For Pg 9.1 and newer instead read the current contrib docs and CREATE EXTENSION. These features do not exist in 9.0 or older versions, like your 8.4.
If you're using a packaged version of PostgreSQL you might need to install a separate package containin...
Check whether number is even or odd
...first bit is set, then the number must be odd. It's usually faster, and it reads just as well in my opinion. I think the reason others don't prefer it over modulus comes down to a lack of understanding of binary.
– crush
Feb 13 '14 at 21:47
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Using WebAPI or MVC to return JSON in ASP.NET
...ould still be using ASP.NET MVC Controller right? And since you may have already logically divided your controllers based on entities then it make sense to add those json serving methods in it as opposed to making another class specifically for web api.
So for your particular situation (if i unders...
Is the pImpl idiom really used in practice?
I am reading the book "Exceptional C++" by Herb Sutter, and in that book I have learned about the pImpl idiom. Basically, the idea is to create a structure for the private objects of a class and dynamically allocate them to decrease the compilation time (and also hide the private implementatio...
Curious null-coalescing operator custom implicit conversion behaviour
...?) null
But the optimizer can step in and say "whoa, wait a minute, we already checked that temp is not null; there's no need to check it for null a second time just because we are calling a lifted conversion operator". We'd them optimize it away to just
new int?(op_Implicit(temp2.Value))
My ...
JSF backing bean structure (best practices)
...n yourself to redevelop/expand this code into something bigger, when you already have a nice bean with good structure.
Having 1 big bean, to do it all, will make it more memory dependant if/when you have to do declarations like this MyBigBean bigBean = new MyBigBean(); instead of using the funksjona...
Image width/height as an attribute or in CSS? [duplicate]
...ore doesn't require the alt attribute. I'm fairly certain that most screen readers would not even know that a CSS image exists.
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React.js: onChange event for contentEditable
... @SebastienLorber not very optimized, but I'm pretty sure it's better to read the html, than to set it. The only other option I can think of is to listen to all events that could change the html, and when those happen you cache the html. That'd probably be faster most of the time, but add a lot ...