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How do I change screen orientation in the Android emulator?
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Ctrl+F12 is the keyboard shortcut.
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How can I remove the string “\n” from within a Ruby string?
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You need to use "\n" not '\n' in your gsub. The different quote marks behave differently.
Double quotes " allow character expansion and expression interpolation ie. they let you use escaped control chars like \n to represent their true value, in this case, newline, and allow the use of #{ex...
Create a new cmd.exe window from within another cmd.exe prompt
...my app but having it run within the same prompt as CC is causing CC to think the build continues as long as my app runs.
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Is the C# static constructor thread safe?
...entation shown is thread safe for the initial construction, that is, no locking or null testing is required for constructing the Singleton object. However, this does not mean that any use of the instance will be synchronised. There are a variety of ways that this can be done; I've shown one below.
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“unrecognized selector sent to instance” error in Objective-C
I created a button and added an action for it, but as soon as it invoked, I got this error:
38 Answers
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Rails Root directory path?
... add .to_s. If you want another path in your Rails app, you can use join like this:
Rails.root.join('app', 'assets', 'images', 'logo.png')
In Rails 2 you can use the RAILS_ROOT constant, which is a string.
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Str_replace for multiple items
...ore, but can't find the code. I use str_replace to replace one character like this: str_replace(':', ' ', $string); but I want to replace all the following characters \/:*?"<>| , without doing a str_replace for each.
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HashSet vs. List performance
...her than of the generic List<T> class. Just compare the hash-based key with the linear approach in the List<T> class.
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Capture HTML Canvas as gif/jpg/png/pdf?
...image/png");
with the value in IMG you can write it out as a new Image like so:
document.write('<img src="'+img+'"/>');
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Any tips on how to organize Eclipse environment on multiple monitors?
...of putting Eclipse windows on two monitors. Currently I just detached (clicked on a header and dragged) a few windows to a secondary monitor (package explorer, console, and outline) while leaving primary monitor with maximized source editing window.
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