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Using a bitmask in C#
... mask I did Mon=Math.Power(2, 0), Tues=Math.Pow(2, 1), Wed=Math.Pow(2, 2), etc. so the bit position is a little more obvious for those of use who aren't used to binary to decimal conversion. Blindy's is good too since it turns into a boolean result by shifting the masked bit.
–...
gitosis vs gitolite? [closed]
...east that is GitLab+Gitolite, if you don't need fine control over projects etc, this is way to go.
– Andrew T Finnell
Jun 4 '12 at 21:21
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Django - how to create a file and save it to a model's FileField?
...ite existing file, storing to the right spot, not creating duplicate files etc).
Django 1.4.1
Python 2.7.3
#Model
class MonthEnd(models.Model):
report = models.FileField(db_index=True, upload_to='not_used')
import csv
from os.path import join
#build and store the file
def write_csv():
p...
It is more efficient to use if-return-return or if-else-return?
...sing a switch construct or for Python, enumerating a dict/using a callable/etc.). Therefore almost all if-else-return are cases of guard clauses and those are always testable (mock the tested expression) without the else.
– cowbert
Mar 28 '18 at 3:22
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Reading specific lines only
...ked above:
>>> import linecache
>>> linecache.getline('/etc/passwd', 4)
'sys:x:3:3:sys:/dev:/bin/sh\n'
Change the 4 to your desired line number, and you're on. Note that 4 would bring the fifth line as the count is zero-based.
If the file might be very large, and cause problems...
Difference Between Select and SelectMany
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I understand SelectMany to work like a join shortcut.
So you can:
var orders = customers
.Where(c => c.CustomerName == "Acme")
.SelectMany(c => c.Orders);
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How to convert a String to its equivalent LINQ Expression Tree?
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@darin, things like starting processes, changing data, etc.
– sisve
May 5 '09 at 9:06
2
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Java 8 Streams: multiple filters vs. complex condition
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Interesting - when I change the order to run test2 BEFORE test1, test1 runs slightly slower. It's only when test1 runs first that it seems faster. Can anyone reproduce this or have any insights?
– Sperr
Aug 4 '17 at 20...
How do I remove the space between inline/inline-block elements?
...ute... what if I'm generating my divs inside Taglibs loops (Struts2, JSTL, etc...) ?
For example:
<s:iterator begin="0" end="6" status="ctrDay">
<br/>
<s:iterator begin="0" end="23" status="ctrHour">
<s:push value="%{days[#ctrDay.index].hours[#ctrHour.index]}"...
What are dictionary view objects?
...faster to obtain, as it does not have to copy any data (keys or values) in order to be created.
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