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Check whether a variable is a string in Ruby
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210
I think you are looking for instance_of?. is_a? and kind_of? will return true for instances from...
Creating my own Iterators
...rs. I have written an article about this very topic; it's in the December 2008 ACCU magazine. It discusses an (IMO) elegant solution for exactly your problem: exposing member collections from an object, using Boost.Iterators.
If you want to use the stl only, the Josuttis book has a chapter on imple...
What is a NullReferenceException, and how do I fix it?
... p1.Books.Add(...) statements.
Array
int[] numbers = null;
int n = numbers[0]; // numbers is null. There is no array to index.
Array Elements
Person[] people = new Person[5];
people[0].Age = 20 // people[0] is null. The array was allocated but not
// initialized. There is no Pers...
What is the difference between the kernel space and the user space?
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120
The really simplified answer is that the kernel runs in kernel space, and normal programs run in...
Visual Studio 2010 - C++ project - remove *.sdf file
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OzzahOzzah
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Getting URL hash location, and using it in jQuery
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edited Nov 19 '17 at 0:14
Mark Amery
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MsDeploy is returning 403 forbidden
...intranet and I'm trying to publish it to the internet using Visual Studio 2010. The destination server is running iis7 and the Web Management Service is running.
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Get UIScrollView to scroll to the top
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UPDATE FOR iOS 7
[self.scrollView setContentOffset:
CGPointMake(0, -self.scrollView.contentInset.top) animated:YES];
ORIGINAL
[self.scrollView setContentOffset:CGPointZero animated:YES];
or if you want to preserve the horizontal scroll position and just reset the vertical position:
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git add . vs git commit -a
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140
git commit -a means almost[*] the same thing as git add -u && git commit.
It's not the ...
How do I access the host machine itself from the iPhone simulator
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answered May 20 '11 at 21:52
jaminguyjaminguy
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