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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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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
...LE
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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App Inventor 2 App上架国内应用市场完整指南 · App Inventor 2 中文网
...求
隐私审核是上架过程中最严格的环节，仅有一个隐私政策页面还不够。
2.1 敏感权限说明
App在申请敏感权限时（如相机、定位、通讯录等），必须同步说明权限申请的使用目的。
要求：
说明...
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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Cannot find module cv2 when using OpenCV
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the question was about Raspbian OS , which is Linux .
– Midhun
Apr 6 '16 at 20:33
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