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Git update submodules recursively
...tialized submodules:
git submodule update --init --recursive
Note: in some older versions of Git, if you use the --init option, already-initialized submodules may not be updated. In that case, you should also run the command without --init option.
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What's the best way to iterate over two or more containers simultaneously
...n which returns a (lazily evaluated) range for the indices. Since the implementation – though simple – is a bit too long to post it here, you can find an implementation on GitHub.
This code is as efficient as using a manual, classical for loop.
If this pattern occurs often in your data, consi...
Align elements side by side
...his is a rather simple question, but I can't figure it out for the life of me. I have two links which I've applied a background image to. Here's what it currently looks like (apologies for the shadow, just a rough sketch of a button):
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best way to add license section to iOS settings bundle
... components licensed under Apache 2.0 and similar licenses, which requires me to include various bits of text, this kind of thing:
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What does LayoutInflater in Android do?
... you place android widgets and then in the adapter's code you have to do something like this:
public MyAdapter(Context context, List<MyObject> objects) extends ArrayAdapter {
super(context, 1, objects);
/* We get the inflator in the constructor */
mInflater = (LayoutInflater) context.ge...
Rails 3 check if attribute changed
...Check out ActiveModel::Dirty (available on all models by default). The documentation is really good, but it lets you do things such as:
@user.street1_changed? # => true/false
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How can we make xkcd style graphs?
...ica and in LaTeX . Can we do it in R? Ggplot2-ers? A geom_xkcd and/or theme_xkcd?
7 Answers
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Jquery selector input[type=text]')
I wrote a code that basically selects all input type=text element like this:
4 Answers
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How to branch with TortoiseHG
I downloaded TortoiseHg 1.0 for evaluation. For the life of me I can't figure out how to make a branch. It seems to understand branches (e.g. in its repository browser) but I just can't seem to find a way to make a branch. This seems like such a fundamental capability since out of the often toute...
C/C++ NaN constant (literal)?
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In C, NAN is declared in <math.h>.
In C++, std::numeric_limits<double>::quiet_NaN() is declared in <limits>.
But for checking whether a value is NaN, you can't compare it with another NaN value. Instead use isnan() from <math.h> in C, or std::isnan() from ...