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Func delegate with no return type
...lt:
public delegate TResult Func<TResult>()
Action<T> takes one argument and does not return a value:
public delegate void Action<T>(T obj)
Action is the simplest, 'bare' delegate:
public delegate void Action()
There's also Func<TArg1, TResult> and Action<TArg1, T...
How do I calculate square root in Python?
...
/ performs an integer division in Python 2:
>>> 1/2
0
If one of the numbers is a float, it works as expected:
>>> 1.0/2
0.5
>>> 16**(1.0/2)
4.0
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String output: format or concat in C#?
...
Honestly, I always concatenate since it's easier to read for me and wow it's faster :)
– puretppc
Jan 20 '14 at 2:09
...
Is there an XSLT name-of element?
...refore, in situations where a name may belong to two different namespaces, one must use the name() function in order for these names to be still distinguished.
And, BTW, it is possible to specify both functions without any argument:
name() is an abbreviation for name(.)
local-name() is an abbrev...
What is a good use case for static import of methods?
... from a class can be particularly harmful to readability; if you need only one or two members, import them individually.
(https://docs.oracle.com/javase/8/docs/technotes/guides/language/static-import.html)
There are two parts I want to call out specifically:
Use static imports only when you wer...
How can I pass arguments to a batch file?
...ent"? Then, if you don't have an answer, you should use a trick like the one of the dots. Remember that, like stated here ss64.com/nt/if.html "You can in fact use almost any character for this a '~' or curly brackets, { } or even the number 4, but square brackets tend to be chosen because they do...
Naming returned columns in Pandas aggregate function? [duplicate]
...a> <lambda 1>
A
a 0 1
and then .rename(), or in one go:
In [4]: df.groupby("A").agg(b=('B', lambda x: 0), c=('B', lambda x: 1))
Out[4]:
b c
A
a 0 0
For pandas < 0.25
The currently accepted answer by unutbu describes are great way of doing this in pandas vers...
Formatting code snippets for blogging on Blogger [closed]
...
Can anyone confirm if this still works? I tried pasting the script tag just before the </head> section and added the pre tag around my code as well. No change though.
– arviman
Nov 2 '11 ...
How to wait for a BackgroundWorker to cancel?
...esetEvent = new AutoResetEvent(false);
public Form1()
{
InitializeComponent();
worker.DoWork += worker_DoWork;
}
public void Cancel()
{
worker.CancelAsync();
_resetEvent.WaitOne(); // will block until _resetEvent.Set() call made
}
void worker_DoWork(object sender, DoWorkEventArgs...
Build Eclipse Java Project from Command Line
...r not this answer actually works, I'm changing the accepted answer to this one. Because it indicates that Eclipse does indeed have a command line switch.
– Keith G
Sep 30 '09 at 13:45
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