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How to make a class property? [duplicate]
... type_ = type(obj)
# return self.fset.__get__(obj, type_)(value)
Now all will be fine.
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Null coalescing in powershell
... evaluated
Null Conditional Assignment
$x = $null
$x ??= 100 # $x is now 100
$x ??= 200 # $x remains 100
Ternary Operator
$true ? "this value returned" : "this expression not evaluated"
$false ? "this expression not evaluated" : "this value returned"
Previous Versions:
No need for ...
Clang vs GCC for my Linux Development project
...cc (ah competition). They created a wiki page to showcase it here. gcc 4.8 now has quite good diagnostics as well (gcc 4.9x added color support). Clang is still in the lead, but the gap is closing.
Original:
For students, I would unconditionally recommend Clang.
The performance in terms of gene...
How to avoid having class data shared among instances?
...f.x
A change method sets self.temp
Pretty straight forward so far yeah? Now let's start playing around with this class. Let's initialize this class first:
a = A('Tesseract')
Now do the following:
>>> print(a.temp)
Skyharbor
>>> print(A.temp)
Skyharbor
Well, a.temp worked ...
How to find all positions of the maximum value in a list?
... leading coefficients are ignored in big O
– michaelsnowden
Oct 23 '15 at 8:06
1
Theoretically O(...
How to add new line into txt file
...
You could do it easily using
File.AppendAllText("date.txt", DateTime.Now.ToString());
If you need newline
File.AppendAllText("date.txt",
DateTime.Now.ToString() + Environment.NewLine);
Anyway if you need your code do this:
TextWriter tw = new StreamWriter("date.txt", ...
Get the current displaying UIViewController on the screen in AppDelegate.m
...oller:
UIViewController *vc = self.window.rootViewController;
Once you know the root view controller, then it depends on how you have built your UI, but you can possibly find out a way to navigate through the controllers hierarchy.
If you give some more details about the way you defined your app...
C++ performance vs. Java/C#
...to do all of its heap compression at once (a fairly expensive operation).
Now I can't speak for Java on this next point, but I know that C# for example will actually remove methods and method calls when it knows the body of the method is empty. And it will use this kind of logic throughout your cod...
How to define custom configuration variables in rails
...
Update 1
Very recommended: I'm going with Rails Config gem nowadays for the fine grained control it provides.
Update2
If you want a quick solution, then check Jack Pratt's answer below.
Although my original answer below still works, this answer is now outdated. I recommend looking...
Is D a credible alternative to Java and C++? [closed]
... see of D, by all means, learn it - it shouldn't take long if you already know Java and C++. I don't think evangelism would be helpful - at this point if D is going to succeed, what it really needs is more people quietly using it and addressing its major shortcomings like standard library and IDE s...