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Kill detached screen session [closed]
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on OSX entering screen -X quit on any terminal terminates all active sessions
– Michel
May 29 '15 at 9:07
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Ruby: How to get the first character of a string
...ot that you should be using 1.8 anymore anyway!--but when this answer was posted it was still quite common):
puts 'Smith'[0] # prints 83
Of course, if you're not doing it on a regular basis, then defining the method might be overkill, and you could just do it directly:
puts last_name[0...
How to set up Android emulator proxy settings
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Does not work with the most common use case of running Fiddler2 or other proxy on localhost.... probably adding port forwarding, but that is a pain too
– gcb
Aug 30 '13 at 1:16
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ComponentGroup 组件组扩展：监控内容变化和批量启用禁用组件 · App Inventor 2 中文网
... 注意事项
单组限制：每个组件只能属于一个组件组。将同一组件添加到多个组会导致错误。
重复添加：重复将同一组件添加到同一组是安全的，不会产生错误。
组件名称：由于 App Inventor 的限制...
Javascript - How to extract filename from a file input control
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vog's answer is really close to the 100% accurate answer to the question (except needs to strip the extension.) A filename is no different from any other string.
– Jon Watte
May 21 '16 at 19:38
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Create a completed Task
...ask;
That property is implemented as a no-lock singleton so you would almost always be using the same completed task.
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MySQL - force not to use cache for testing speed of query
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This will stop MySQL caching the results, however be aware that other OS and disk caches may also impact performance. These are harder to get around.
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What exactly does the .join() method do?
...t array.array('c', random.sample(string.ascii_letters, 20 - len(strid)))
.tostring() + strid
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Error when trying vagrant up
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If you're using OS X and used the standard install, Delete vagrant's old curl and it should now work
sudo rm /opt/vagrant/embedded/bin/curl
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character showing up in files. How to remove them?
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On Mac OSX, I had to change to: perl -CSD -pe 's/^\x{feff}//' file.csv , note the change from <fffe> to <feff>.
– mpettis
Feb 6 '14 at 3:52
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