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How can I unit test Arduino code?
...Sim-based tests
There's a lot of discussion about what unit test means and I'm not
really trying to make an argument about that here. This post is not
telling you to avoid all practical testing on your ultimate target
hardware. I am trying to make a point about optimizing your
developmen...
Why is 'false' used after this simple addEventListener function?
...
@BikashChandraMondal check out the answer below.
– libra
Nov 20 '14 at 3:21
34
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Covariance, Invariance and Contravariance explained in plain English?
Today, I read some articles about Covariance, Contravariance (and Invariance) in Java. I read the English and German Wikipedia article, and some other blog posts and articles from IBM.
...
How to iterate over values of an Enum having flags?
...riable? Or do I have to use Enum.GetValues to iterate over the entire enum and check which ones are set?
16 Answers
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rails - Devise - Handling - devise_error_messages
...error_messsages! method is just a stub (though it contains implementation) and that we're supposed to override/replace it. It would have been nice if this was pointed out somewhere in the wiki, which is why i guess there are a few people like us that have been guessing.
So I'm going to try reopenin...
Catch a thread's exception in the caller thread in Python
I'm very new to Python and multithreaded programming in general. Basically, I have a script that will copy files to another location. I would like this to be placed in another thread so I can output .... to indicate that the script is still running.
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Array slices in C#
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Note that only single dimensional and jagged arrays are enumerable, multi dimensional arrays are not.
– Abel
Apr 8 '10 at 9:11
13
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How do I undo 'git add' before commit?
I mistakenly added files to Git using the command:
36 Answers
36
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Convert an enum to List
...you want to create a method that does only this for only one type of enum, and also converts that array to a List, you can write something like this:
public List<string> GetDataSourceTypes()
{
return Enum.GetNames(typeof(DataSourceTypes)).ToList();
}
You will need Using System.Linq; at ...
generate model using user:references vs user_id:integer
..._id: integer, created_at: datetime, updated_at: datetime)
The second command adds a belongs_to :user relationship in your Micropost model whereas the first does not. When this relationship is specified, ActiveRecord will assume that the foreign key is kept in the user_id column and it will use a ...