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Error installing mysql2: Failed to build gem native extension
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On Ubuntu/Debian and other distributions using aptitude:
sudo apt-get install libmysql-ruby libmysqlclient-dev
Package libmysql-ruby has been phased out and replaced by ruby-mysql. This is where I found the solution.
If the above command doesn't work because libmysql-ruby cannot b...
How to Sign an Already Compiled Apk
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if you do this and try to install the APK, you might end up with a INSTALL_FAILED_DUPLICATE_PERMISSION error. This happens when the original APK cannot be overwrited (system or built-in app for instance)
– Coui...
What is the difference between public, protected, package-private and private in Java?
...iate between 'Public' and 'Protected'. And what is 'World' in this answer. Does it mean access out of project folder in a different project & package?? But that is not taking place. Need help on this.
– Deepak
Apr 25 '18 at 12:25
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Return a “NULL” object if search result not found
... later. if you need to be backwards compatible with earliver versions then don't
– Conrad Jones
Jan 12 '18 at 20:53
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Case-Insensitive List Search
...f strings. I would like to add a new string into the testList only if it doesn't already exist in the list. Therefore, I need to do a case-insensitive search of the list and make it efficient. I can't use Contains because that doesn't take into account the casing. I also don't want to use ToUpp...
Readonly Properties in Objective-C?
I have declared a readonly property in my interface as such:
7 Answers
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Cross-Origin Request Headers(CORS) with PHP headers
I have a simple PHP script that I am attempting a cross-domain CORS request:
11 Answers
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URL: Username with @
...s if your password contains an @ too, which is increasingly likely with random passwords created by password managers.
– Adambean
Nov 4 '18 at 23:19
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event Action vs event EventHandler
...nt in the system, which I would consider a drawback.
One upside with the dominating design pattern (apart from the power of sameness) is that you can extend the EventArgs object with new properties without altering the signature of the event. This would still be possible if you used Action<Some...
What's the difference between disabled=“disabled” and readonly=“readonly” for HTML form input fields
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A readonly element is just not editable, but gets sent when the according form submits. A disabled element isn't editable and isn't sent on submit. Another difference is that readonly elements can be focused (and getting focused w...