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Python regular expressions return true/false
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141
Match objects are always true, and None is returned if there is no match. Just test for truene...
How to securely save username/password (local)?
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161
If you are just going to verify/validate the entered user name and password, use the Rfc2898De...
Docker how to change repository name or rename image?
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1085
docker image tag server:latest myname/server:latest
or
docker image tag d583c3ac45fd mynam...
what is the difference between ?:, ?! and ?= in regex?
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160
The difference between ?= and ?! is that the former requires the given expression to match and...
What is the logic behind the “using” keyword in C++?
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What's invokedynamic and how do I use it?
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164
It is a new JVM instruction which allows a compiler to generate code which calls methods with ...
How do I remove the passphrase for the SSH key without having to create a new key?
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edited Apr 19 at 13:41
Arsen Khachaturyan
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How do I convert a pandas Series or index to a Numpy array? [duplicate]
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To get a NumPy array, you should use the values attribute:
In [1]: df = pd.DataFrame({'A': [1, 2, 3], 'B': [4, 5, 6]}, index=['a', 'b', 'c']); df
A B
a 1 4
b 2 5
c 3 6
In [2]: df.index.values
Out[2]: array(['a', 'b', 'c'], dtype=object)
This accesses how the data is already ...
Java Synchronized Block for .class
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144
The snippet synchronized(X.class) uses the class instance as a monitor. As there is only one c...
How to access route, post, get etc. parameters in Zend Framework 2
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edited Jun 20 at 9:12
Community♦
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answered Aug 22 '12 at 16:05
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