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How to randomly select an item from a list?
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14 Answers
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How to assign a Git SHA1's to a file without Git?
As I understand it when Git assigns a SHA1 hash to a file this SHA1 is unique to the file based on its contents.
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Reload django object from database
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As of Django 1.8 refreshing objects is built in. Link to docs.
def test_update_result(self):
obj = MyModel.objects.create(val=1)
MyModel.objects.filter(pk=obj.pk).update(val=F('val') + 1)
# At this point obj.val is still 1, b...
UICollectionView Set number of columns
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ERROR: Error installing capybara-webkit:
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If you are in Ubuntu do
sudo apt-get install qt4-dev-tools libqt4-dev libqt4-core libqt4-gui
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php is null or empty?
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edited Dec 11 '19 at 23:39
kkurian
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In-App Billing test: android.test.purchased already owned
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How to match “any character” in regular expression?
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Is it worth using Python's re.compile?
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I've had a lot of experience running a compiled regex 1000s of times versus compiling on-the-fly, and have not noticed any perceivable difference. Obviously, this is anecdotal, and certainly not a great argument against compiling, but I've found the difference to be negligible....
Nginx url重写rewrite实例详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...rewrite在nginx中实现url重写，学习rewrite的具体用法，包括301重定向的内容等，希望对大家有所帮助。nginx rewrite 实现二级域名跳转
当访问http://www.jbyuan.com跳转到http://www.jbyuan.com/nvxingjiankang/
方法一：
这种方法浏览器地址会变www.j...