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@ variables in Ruby on Rails
What's the difference between @title and title ? Since both of them can be variable names. Also, how do I decide which kind of variable I should use? With @ or not?
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Representing graphs (data structure) in Python
... ('E', 'F'), ('F', 'C')]
The data structure I've found to be most useful and efficient for graphs in Python is a dict of sets. This will be the underlying structure for our Graph class. You also have to know if these connections are arcs (directed, connect one way) or edges (undirected, connect bo...
How to colorize diff on the command line?
...a diff, how can I colorize it so that it looks good? I want it for the command line, so please no GUI solutions.
14 Answers...
How to generate javadoc comments in Android Studio
Can I use shortcut keys in Android studio to generate javadoc comments?
16 Answers
16
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Dependency injection through constructors or property setters?
I'm refactoring a class and adding a new dependency to it. The class is currently taking its existing dependencies in the constructor. So for consistency, I add the parameter to the constructor.
Of course, there are a few subclasses plus even more for unit tests, so now I am playing the game of go...
tag in Twitter Bootstrap not functioning correctly?
... 18px 0;
}
It correspond to a 1px horizontal line with a very light grey and vertical margin of 18px.
and because <hr> is inside a <div> without class the width depends on the content of the <div>
if you would like the <hr> to be full width, replace <div> with <d...
Listening for variable changes in JavaScript
... is an old thread but now this effect is possible using accessors (getters and setters): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_Objects#Defining_getters_and_setters
You can define an object like this, in which aInternal represents the field a:
x = {
aInternal:...
How to force maven update?
I imported my already working project on another computer and it started to download dependencies.
25 Answers
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Delete keychain items when an app is uninstalled
I am using idandersen's scifihifi-iphone code for keychain and save password using
8 Answers
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What's “requestCode” used for on PendingIntent?
...ded even in case the alarms' intents are very different (one for service A and one for service B , for example ) ? Also, how come the documentation doesn't say anything about it? Is it possible to remove all alarms of a certain type, no matter what is the requestCode?
– android...