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Difference between pre-increment and post-increment in a loop?
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a++ is known as postfix.
add 1 to a, returns the old value.
++a is known as prefix.
add 1 to a, returns the new value.
C#:
string[] items = {"a","b","c","d"};
int i = 0;
foreach (string item in items)
{
Console.WriteLine(+...
Handling exceptions from Java ExecutorService tasks
...Java's ThreadPoolExecutor class to run a large number of heavy weight tasks with a fixed number of threads. Each of the tasks has many places during which it may fail due to exceptions.
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Is there a way to zoom the Visual Studio text editor with a keyboard shortcut?
...ding to zoom my Visual Studio text editor and was without a mouse (don't ask). Typically I do this by holding down CTRL and scrolling the mouse wheel. I also couldn't figure out how to tab into the area where you can specify your zoom level in the lower left hand corner of the text editor window.
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Best way to use PHP to encrypt and decrypt passwords? [duplicate]
I plan to store foreign account information for my users on my website, aka rapidshare username and passwords, etc... I want to keep information secure, but I know that if I hash their information, I can't retrieve it for later use.
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How Big can a Python List Get?
... answered May 12 '09 at 23:48
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How to replace NaN values by Zeroes in a column of a Pandas Dataframe?
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I believe DataFrame.fillna() will do this for you.
Link to Docs for a dataframe and for a Series.
Example:
In [7]: df
Out[7]:
0 1
0 NaN NaN
1 -0.494375 0.570994
2 NaN NaN
3 1.876360 -0.229738
4 NaN NaN
In [8]: df.fill...
How to generate unique ID with node.js
How to set a variable value with database query callback? How I can do it?
13 Answers
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What is the size limit of a post request?
Sorry if this is duplicate,I would think it would be but couldn't find anything.
9 Answers
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What is the syntax rule for having trailing commas in tuple definitions?
...rom a set of function arguments, operator precedence, or to allow line breaks.
The trailing comma for tuples, lists, or function arguments is good style especially when you have a long initialisation that is split over multiple lines. If you always include a trailing comma then you won't add anothe...
Installing SetupTools on 64-bit Windows
...n OS X) there is a bug in the Windows installer. I stumbled across this workaround, which might help - basically, you create your own registry value HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Python\PythonCore\2.6\InstallPath and copy over the InstallPath value from HKEY_LOCAL_MACHINE\SOFTWARE\Python\P...