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When should I use nil and NULL in Objective-C?

... technically, they are exactly equal, you can send messages to both nil and to NULL. Idiomatically though nil is usually used to represent an object – cobbal Oct 14 '09 at 5:43 ...
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Colspan/Rowspan for elements whose display is set to table-cell

... does not explicitly rule that solution must be pure CSS, I'll be stubborn and throw in my workaround I figured out today, especially since it's much more elegant than having a table inside a table. Example equals to <table> with two cells per row and two rows, where the cell in the second ro...
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EditText underline below text property

... Also works on Xamarin for Android, in your custom renderer OnElementChanged you can do Control.Background.SetColorFilter(Android.Graphics.Color.White, PorterDuff.Mode.SrcIn); – David Conlisk Feb 16 '16 at 12:33 ...
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How can I tell who forked my repository on GitHub?

...can see the number of forks, but I'd like to know who forked my repository and what kind of changes they made to it. 3 Answ...
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When is std::weak_ptr useful?

I started studying smart pointers of C++11 and I don't see any useful use of std::weak_ptr . Can someone tell me when std::weak_ptr is useful/necessary? ...
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How to log request and response body with Retrofit-Android?

... I used setLogLevel(LogLevel.FULL).setLog(new AndroidLog("YOUR_LOG_TAG")), it helped me. UPDATE. You can also try for debug purpose use retrofit.client.Response as response model share |...
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Parse large JSON file in Nodejs

I have a file which stores many JavaScript objects in JSON form and I need to read the file, create each of the objects, and do something with them (insert them into a db in my case). The JavaScript objects can be represented a format: ...
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text-overflow:ellipsis in Firefox 4? (and FF5)

...TextBox').val().length > limit) { // -4 to include the ellipsis size and also since it is an index var trimmedText = $('#limitedWidthTextBox').val().substring(0, limit - 4); trimmedText += ellipsis; $('#limitedWidthTextBox').val(trimmedText); } I understand that there should be som...
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Redis is single-threaded, then how does it do concurrent I/O?

...pends on how you define concurrency. In server-side software, concurrency and parallelism are often considered as different concepts. In a server, supporting concurrent I/Os means the server is able to serve several clients by executing several flows corresponding to those clients with only one com...
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How can I use Timer (formerly NSTimer) in Swift?

... You can declare Var timer: NSTimer! initially and use it whenever needed! – Nigilan Sep 1 '15 at 7:38 1 ...