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If my interface must return Task what is the best way to have a no-operation implementation?

...mprove performance even more if you cache the already completed task since all instances of completed tasks are the same: public static class TaskExtensions { public static readonly Task CompletedTask = Task.FromResult(false); } With TaskExtensions.CompletedTask you can use the same instance ...
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How to install packages offline?

... download a python package and it's dependencies from pypi for offline installation on another machine? Is there any easy way to do this with pip or easy_install? I'm trying to install the requests library on a FreeBSD box that is not connected to the internet. ...
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Node.js/Express.js App Only Works on Port 3000

I have a Node.js/Express.js app running on my server that only works on port 3000 and I'm trying to figure out why. Here's what I've found: ...
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How to reverse a 'rails generate'

I want to delete all the files it created and roll back any changes made, but not necessarily to the database, but more to the config files. ...
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Clear android application user data

... } catch (IOException e) { e.printStackTrace(); } finally { try { if (isr != null) isr.close(); } catch (IOException e) { e.printStackTrace(); } mCountDownLatch.countDown(); ...
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How to get the nvidia driver version from the command line?

...s information on Nvidia site on how to do so: https://nvidia.custhelp.com/app/answers/detail/a_id/3751/~/useful-nvidia-smi-queries Also, I found this thread researching powershell. Here is an example command that runs the utility to get the true memory available on the GPU to get you started. # g...
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OS X Framework Library not loaded: 'Image not found'

... a Cocoa Framework Within that targets 'Build Settings' configure the 'Installation Directory' to '@executable_path/../Frameworks' Build library, and access the .framework from the archive or products directory Including The Framework Drag the created .framework file into the Xcode Project, be s...
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onActivityResult() & onResume() [duplicate]

Could someone tell me which gets called first, is it onActivityResult() or is it onResume() ? Example: 3 Answers ...
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Changing UIImage color

...er as) in your assets. Then the color of the image would be the tint color applied. share | improve this answer | follow | ...
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Installing Ruby Gem in Windows

I'm new to ruby. I tried to install GEM on my PC by following the steps given in the site http://rubygems.org/pages/download . ...