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Python function global variables?
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edited Feb 28 '15 at 16:40
Cristian Ciupitu
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How do I create a class instance from a string name in ruby?
...const_get c}
=> Foo::Bar
> clazz.new
=> #<Foo::Bar:0x0000010110a4f8>
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How to display a content in two-column layout in LaTeX?
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172
Load the multicol package, like this \usepackage{multicol}. Then use:
\begin{multicols}{2}
Co...
When to use StringBuilder in Java [duplicate]
...ion in a loop, something like this,
String s = "";
for (int i = 0; i < 100; i++) {
s += ", " + i;
}
then you should use a StringBuilder (not StringBuffer) instead of a String, because it is much faster and consumes less memory.
If you have a single statement,
String s = "1, " + "2, " + "...
generate model using user:references vs user_id:integer
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192
Both will generate the same columns when you run the migration. In rails console, you can see...
How to kill zombie process
...e the zombie. (After the parent dies, the zombie will be inherited by pid 1, which will wait on it and clear its entry in the process table.) If your daemon is spawning children that become zombies, you have a bug. Your daemon should notice when its children die and wait on them to determine thei...
Why does Math.Round(2.5) return 2 instead of 3?
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15 Answers
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Update a submodule to the latest commit
...t -m "projA submodule updated"
UPDATE
As @paul pointed out, since git 1.8, we can use
git submodule update --remote --merge
to update the submodule to the latest remote commit. It'll be convenient in most cases.
shar...
How to concatenate text from multiple rows into a single text string in SQL server?
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