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How do I include negative decimal numbers in this regular expression?
How do I match negative numbers as well by this regular expression? This regex works fine with positive values, but I want it to also allow negative values e.g. -10, -125.5 etc.
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What are Unwind segues for and how do you use them?
...er = unwindSegue.sourceViewController;
if ([sourceViewController isKindOfClass:[BlueViewController class]])
{
NSLog(@"Coming from BLUE!");
}
else if ([sourceViewController isKindOfClass:[GreenViewController class]])
{
NSLog(@"Coming from GREEN!");
}
}
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iOS Detection of Screenshot?
...ue = [NSOperationQueue mainQueue];
[[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationUserDidTakeScreenshotNotification
object:nil
queue:mainQueue
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How do I open the SearchView programmatically?
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Hello, a keyboard pops-up but the SearchView does not open.
– Eli Revah
Jan 9 '13 at 13:21
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Using two values for one switch case statement
In my code, the program does something depending on the text entered by the user. My code looks like:
11 Answers
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Check if a value is within a range of numbers
I want to check if a value is in an accepted range. If yes, to do something; otherwise, something else.
7 Answers
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Should I store generated code in source control
...aving it in source control is more trouble than it's worth.
You have to do a commit every time you do a build for it to be any value.
Generally we leave generated code( idl, jaxb stuff, etc) outside source control where I work and it's never been a problem
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Multiple returns from a function
... answered Aug 10 '10 at 17:59
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Reference: What is variable scope, which variables are accessible from where and what are “undefined
...scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
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What is the difference between the kernel space and the user space?
What is the difference between the kernel space and the user space? Do kernel space, kernel threads, kernel processes and kernel stack mean the same thing? Also, why do we need this differentiation?
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