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How to sort an array of hashes in ruby
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Simples:
array_of_hashes.sort_by { |hsh| hsh[:zip] }
Note:
When using sort_by you need to assign the result to a new variable: array_of_hashes = array_of_hashes.sort_by{} otherwise you can use the "bang" method to modify in place: array_of_hashes.s...
How do I simply create a patch from my latest git commit?
I'm looking for the magic command of creating a patch from the last commit made.
5 Answers
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What is mattr_accessor in a Rails module?
...'t really find this in Rails documentation but it seems like 'mattr_accessor' is the Module corollary for 'attr_accessor' (getter & setter) in a normal Ruby class .
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Equation for testing if a point is inside a circle
...x, center_y) and radius radius , how do you test if a given point with coordinates (x, y) is inside the circle?
16 Answ...
What exactly is Python multiprocessing Module's .join() Method Doing?
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The join() method, when used with threading or multiprocessing, is not related to str.join() - it's not actually concatenating anything together. Rather, it just means "wait for this [thread/process] to complete". The name join is used because the multiprocessing modul...
AngularJS Folder Structure [closed]
How do you layout a folder structure for a large and scaleable AngularJS application?
5 Answers
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Java - Including variables within strings?
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You can always use String.format(....). i.e.,
String string = String.format("A String %s %2d", aStringVar, anIntVar);
I'm not sure if that is attractive enough for you, but it can be quite handy. The syntax is the same as for printf and java.util.F...
In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
... out of the way first. The explanation that yield from g is equivalent to for v in g: yield v does not even begin to do justice to what yield from is all about. Because, let's face it, if all yield from does is expand the for loop, then it does not warrant adding yield from to the language and precl...
How to calculate time elapsed in bash script?
...ssignment plus the assigned value.
Thus, you can just set SECONDS to 0 before starting the timed event, simply read SECONDS after the event, and do the time arithmetic before displaying.
SECONDS=0
# do some work
duration=$SECONDS
echo "$(($duration / 60)) minutes and $(($duration % 60)) seconds el...
What exactly is a Maven Snapshot and why do we need it?
...t version in Maven is one that has not been released.
The idea is that before a 1.0 release (or any other release) is done, there exists a 1.0-SNAPSHOT. That version is what might become 1.0. It's basically "1.0 under development". This might be close to a real 1.0 release, or pretty far (right aft...