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HTML5 Email Validation
It is said "With HTML5, we need no more js or a server side code to check if the user's input is a valid email or url address"
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
I am transitioning from Java to C++ and have some questions about the long data type. In Java, to hold an integer greater than 2 32 , you would simply write long x; . However, in C++, it seems that long is both a data type and a modifier.
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How to make the 'cut' command treat same sequental delimiters as one?
...ce of a repeated character
that is listed in SET1 with a single occurrence
of that character
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Blocks on Swift (animateWithDuration:animations:completion:)
...g trouble making the blocks work on Swift. Here's an example that worked (without completion block):
7 Answers
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Check if a folder exist in a directory and create them using C#
...can I check if directory C:/ contains a folder named MP_Upload , and if it does not exist, create the folder automatically?
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Which is faster: while(1) or while(2)?
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Both loops are infinite, but we can see which one takes more instructions/resources per iteration.
Using gcc, I compiled the two following programs to assembly at varying levels of optimization:
int main(void) {
while(1) {}
return 0;
}
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How to detect iPhone 5 (widescreen devices)?
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First of all, you shouldn't rebuild all your views to fit a new screen, nor use different views for different screen sizes.
Use the auto-resizing capabilities of iOS, so your views can adjust, and adapt any screen size.
That's not very hard, read some documentation about that. ...
In Python, using argparse, allow only positive integers
The title pretty much summarizes what I'd like to have happen.
5 Answers
5
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Is nested function a good approach when required by only one function? [closed]
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>>> def sum(x, y):
... def do_it():
... return x + y
... return do_it
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>>> a = sum(1, 3)
>>> a
<function do_it at 0xb772b304>
>>> a()
4
Is this what you were looking for? It's called a closure.
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How to update a menu item shown in the ActionBar?
I have an Activity that has 2 fragments. Both are ListFragments and both contribute MenuItems to the Menu. I have one MenuItem that I've set the attribute android:showAsAction to have it show as a button on the ActionBar. Which works fine.
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