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Best way to convert IList or IEnumerable to Array
...omething like this:
IEnumerable query = ...;
MyEntityType[] array = query.Cast<MyEntityType>().ToArray();
If you don't know the type within that method but the method's callers do know it, make the method generic and try this:
public static void T[] PerformQuery<T>()
{
IEnumerabl...
Pythonic way to check if a file exists? [duplicate]
Which is the preferred way to check if a file exists and if not create it?
5 Answers
5...
How to get Linux console window width in Python
...mns = os.popen('stty size', 'r').read().split()
uses the 'stty size' command which according to a thread on the python mailing list is reasonably universal on linux. It opens the 'stty size' command as a file, 'reads' from it, and uses a simple string split to separate the coordinates.
Unlike the...
How do I change the working directory in Python?
cd is the shell command to change the working directory.
14 Answers
14
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Performant Entity Serialization: BSON vs MessagePack (vs JSON)
...n alternative binary serialization format to Google's Protocol Buffers and JSON which also outperforms both.
6 Answer...
Correct way to write line to file?
...rifies my intent. Feel free to edit my answers if they are "rather useless and misleading".
– Johnsyweb
Dec 3 '14 at 9:57
1
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What is an idiomatic way of representing enums in Go?
... literal value 42, which the function would accept as base since it can be casted to an int. To prevent this, make base a struct: type base struct{value:int}. Problem: you cannot declare bases as constants anymore, only module variables. But 42 will never be cast to a base of that type.
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How to write log to file
...The safer permissions are 0644 or even 0664 to allow user read/write, user and group read/write, and in both cases disallow everyone write.
– Jonathan
Jun 10 '16 at 16:22
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round() for float in C++
....49999999999999994, (see it live).
Another common implementation involves casting a floating point type to an integral type, which can invoke undefined behavior in the case where the integral part can not be represented in the destination type. We can see this from the draft C++ standard section 4....
How do you do a simple “chmod +x” from within python?
...e os.stat() to get the current permissions, use | to or the bits together, and use os.chmod() to set the updated permissions.
Example:
import os
import stat
st = os.stat('somefile')
os.chmod('somefile', st.st_mode | stat.S_IEXEC)
...