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When is it better to use String.Format vs string concatenation?
...t at all - and this concatenation version doesn't need to parse the format string.
Format strings are great for purposes of localisation etc, but in a case like this concatenation is simpler and works just as well.
With C# 6
String interpolation makes a lot of things simpler to read in C# 6. In t...
Unlink of file failed
...
That usually means a process is still using that specific file (still has an handle on it)
(on Windows, ProcessExplorer is good at tracking that kind of process)
Try closing your other programs, and try again your git pull.
Note th...
How do I use LINQ Contains(string[]) instead of Contains(string)
...
spoulson has it nearly right, but you need to create a List<string> from string[] first. Actually a List<int> would be better if uid is also int. List<T> supports Contains(). Doing uid.ToString().Contains(string[]) would imply that the uid as a string contains all o...
What generates the “text file busy” message in Unix?
...table while it was running.
For example, I was building a make workalike called rmk, and after a while it was self-maintaining. I would run the development version and have it build a new version. To get it to work, it was necessary to use the workaround:
gcc -g -Wall -o rmk1 main.o -L. -lrmk -L...
SQLiteDatabase.query method
...
tableColumns
null for all columns as in SELECT * FROM ...
new String[] { "column1", "column2", ... } for specific columns as in SELECT column1, column2 FROM ... - you can also put complex expressions here:
new String[] { "(SELECT max(column1) FROM table1) AS max" } would give you a colu...
jQuery UI: Datepicker set year range dropdown to 100 years
...ed):
for (a.yearshtml+='<select class="ui-datepicker-year" onchange="DP_jQuery_'+y+".datepicker._selectMonthYear('#"+
a.id+"', this, 'Y');\" onclick=\"DP_jQuery_"+y+".datepicker._clickMonthYear('#"+a.id+"');\">";b<=g;b++)
a.yearshtml+='<option value="'+b+'"'+(b==c?' selected="selected"...
NGINX to reverse proxy websockets AND enable SSL (wss://)?
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What about this timeout problem? Do we have really to set it to a very large number to avoid it? Isn't there now any more elegant solution?
– Mohammed Noureldin
Jan 4 '18 at 23:48
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Mercurial .hgignore for Visual Studio 2010 projects
...ut an entry that's already there.. Feel free to edit the list and yes I totally agree, it should be added
– Shady M. Najib
Apr 14 '11 at 12:07
2
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In Python script, how do I set PYTHONPATH?
... that if you want to make sure that Python checks the new directory before all of the others when importing, you should put the new directory first in the list, as in sys.path.insert(0, '/path/to/whatever').
– wecsam
Jun 15 '17 at 16:22
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In Python, using argparse, allow only positive integers
...still need to define an actual method that decides this for you:
def check_positive(value):
ivalue = int(value)
if ivalue <= 0:
raise argparse.ArgumentTypeError("%s is an invalid positive int value" % value)
return ivalue
parser = argparse.ArgumentParser(...)
parser.add_argu...