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When to use an object instance variable versus passing an argument to the method
...en to use instance variables, how to define their scope, and when to use local variables is subjective, but there are a couple of rules of thumb you can follow whenever creating your classes.
Instance variables are typically considered to be attributes of a class. Think of these as adjectives of t...
List all the modules that are part of a python package?
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Yes, you want something based on pkgutil or similar -- this way you can treat all packages alike regardless if they are in eggs or zips or so (where os.listdir won't help).
import pkgutil
# this is the package we are inspecting -- for example 'email' from stdlib
import email
package = emai...
Ruby custom error classes: inheritance of the message attribute
I can't seem to find much information about custom exception classes.
4 Answers
4
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What happens to a github student account's repositories at the end of 2 years?
...rk at GitHub)
So long as you're still a student, you're eligible for the academic discount. Once your coupon expires, you can re-apply for the student discount.
When you re-apply, be sure you've added your school-issued email address to your account, that will expedite the approval process.
You w...
Conditional HTML Attributes using Razor MVC3
...al attributes built into Razor(as of MVC 4 RC tested successfully), so you can just say things like this...
<input type="text" id="@strElementID" class="@strCSSClass" />
If strCSSClass is null then the class attribute won't render at all.
SSSHHH...don't tell. :)
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What is the Scala identifier “implicitly”?
I have seen a function named implicitly used in Scala examples. What is it, and how is it used?
3 Answers
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Understanding Canvas and Surface concepts
...the process of drawing to SurfaceView and therefore the whole Surface / Canvas / Bitmap system, which is used in Android.
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Storing Image Data for offline web application (client-side storage database)
I have an offline web application using appcaching. I need to provide it about 10MB - 20MB of data that it will save (client-side) consisting mainly of PNG image files. The operation is as follows:
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google oauth2 redirect_uri with several parameters
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You cannot add anything to the redirect uri, redirect uri is constant as set
in the app settings of Oauth.
eg :http://www.example.com/redirect.html
To pass several parameters to your redirect uri, have them stored in state
parame...
Emacs mode for Stack Overflow's markdown
I am using Org-mode in Emacs to handle all my technical documentation. I would like to use Emacs to prepare questions that I have for Stack Overflow. Is there an Emacs mode for that, or even better, an extension for Org-mode to handle Stack Overflow formatting? Ideally it should include all formatti...