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Skip first entry in for loop in python?
... None):
# do something
islice in this case is invoked with a start-point of 1, and an end point of None, signifying the end of the iterator.
To be able to skip items from the end of an iterable, you need to know its length (always possible for a list, but not necessarily for everything you ca...
How to empty a list in C#?
...
Since this is a top hit in google and I run into this problem, I'm necro commenting this. If you use the same list in a loop and use clear, the list will often keep reference to old objects - I often end up using = new LisT<T>(); due to the fact that it clears al...
Email address validation using ASP.NET MVC data type attributes
...) cannot be used to validate user input. It is only used to provide a UI hint for rendering the values using the display / editor templates.
– Liam
May 7 '15 at 16:41
4
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How to turn NaN from parseInt into 0 for an empty string?
...
var s = '';
var num = parseInt(s) || 0;
When not used with boolean values, the logical OR (||) operator returns the first expression (parseInt(s)) if it can be evaluated to true, otherwise it returns the second expression (0). The return value of par...
Function Pointers in Java
...s a concept of delegates, which relates strongly to the idea of function pointers from C++. Is there a similar functionality in Java? Given that pointers are somewhat absent, what is the best way about this? And to be clear, we're talking first class here.
...
What does $_ mean in PowerShell?
...llowing examples:
PowerShell:
1,2,3 | ForEach-Object {Write-Host $_}
Prints:
1
2
3
or
1,2,3 | Where-Object {$_ -gt 1}
Prints:
2
3
And compare this with C# syntax using LINQ:
var list = new List<int> { 1, 2, 3 };
list.ForEach( _ => Console.WriteLine( _ ));
Prints:
1
2
3
or...
How to use getJSON, sending data with post method?
...0" is the callback GET value.
In PHP the implementation would be like:
print_r($_GET['callback']."(".json_encode($myarr).");");
I made some cross-domain tests and it seems to work. Still need more testing though.
share
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How to stop an animation (cancel() does not work)
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Hi again! I have found a way to get point (in terms of interpolated time) when animation was canceled. You need to make Animation sub-class and put there code from android code animation (e.g. TranslateAnimation). In your class you will be able to save and track ...
UIButton won't go to Aspect Fit in iPhone
...u manage button states with this technique? Seems like responding to user interaction like "highlighted" would be a nightmare.
– SooDesuNe
Oct 24 '12 at 2:30
3
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How to check whether a variable is a class or not?
...thon 3 simplifies this to isinstance(object, type). Note that objects like int, list, str, etc. are also classes, so you can't use this to distinguish between custom classes defined in Python and built-in classes defined in C code.
– Martijn Pieters♦
Jan 6 '1...