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Check if a method exists

...here is also the static message instancesRespondToSelector:(SEL)selector You would call it like this: [MyClass instancesRespondToSelector:@selector(someMethod:withParams:)] or like this: [[myObject class] instancesRespondToSelector:@selector(someMethod:withParams:)] This may be useful if you w...
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SELECT INTO using Oracle

I'm trying to do a SELECT INTO using Oracle. My query is: 3 Answers 3 ...
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Hour from DateTime? in 24 hours format

So i have this DateTime? and what i want to do is to obtain the hour but show it in 24 hours format. For example: If the hour is 2:20:23 p.m. i want to convert it to 14:20 and that's it. ...
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sqlite alter table add MULTIPLE columns in a single statement

Is it possible to alter table add MULTIPLE columns in a single statement in sqlite? The following would not work. 4 Answers...
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Accessing outside variable using anonymous function as params

Basically I use this handy function to processing db rows (close an eye on PDO and/or other stuff) 2 Answers ...
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Is there a way to follow redirects with command line cURL?

... Use the location header flag: curl -L <URL> share | improve this answer | follow ...
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How do you install ssh-copy-id on a Mac?

I am having trouble trying to install ssh-copy-id on my Mac. I have tried to follow https://github.com/beautifulcode/ssh-copy-id-for-OSX but every time I run ssh-copy-id it gives me errors. Any ideas on how to get ssh-copy-id to install? ...
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How to compare two files not in repo using git

...ke to compare two css files which are not in any git repository. Is there such a functionality in git? 3 Answers ...
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Format decimal for percentage values?

... Use the P format string. This will vary by culture: String.Format("Value: {0:P2}.", 0.8526) // formats as 85.26 % (varies by culture) share ...
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What is the difference between MediaPlayer and VideoView in Android

... Was asking the same question and as I understood from what Mark (CommonsWare) advised on numerous threads here, VideoView is a wrapper (200 hundred lines of code) for MediaPlayer and SurfaceView to provide embedded controls. He also kindly share...