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git: How to diff changed files versus previous versions after a pull?
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There are all kinds of wonderful ways to specify commits - see the specifying revisions section of man git-rev-parse for more details. In this case, you probably want:
git diff HEAD@{1}
The @{1} means "the previous position of the r...
how to specify local modules as npm package dependencies
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npm install now supports this
npm install --save ../path/to/mymodule
For this to work mymodule must be configured as a module with its own package.json. See Creating NodeJS modules.
As of npm 2.0, local dependencies are supported...
How to add a second css class with a conditional value in razor MVC 4
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Personally I prefer the trivial logic, having a getDetailCssClass method means that your Model is aware of your View, breaking down that abstraction. I would add an HasDetails method to the Model to reduce the logic required in the...
Capture screenshot of active window?
I am making a screen capturing application and everything is going fine. All I need to do is capture the active window and take a screenshot of this active window. Does anyone know how I can do this?
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Mapping two integers to one, in a unique and deterministic way
...d for e.g. dovetailing. Have a look at this PDF for an introduction to so-called pairing functions. Wikipedia introduces a specific pairing function, namely the Cantor pairing function:
Three remarks:
As others have made clear, if you plan to implement a pairing function, you may soon find you ...
Change timestamps while rebasing git branch
...mps of the commits to be in an mixed up order. I would rather have them be all be today with only seconds in between.
4 Ans...
Draw radius around a point in Google map
..."). And if you have a flat coordinate system you can draw 2D objects on it all you want.
In other words you can draw a scaled vector circle on a google map. The catch is, google maps doesn't give it to you out of the box (they want to stay as close to GIS values as is pragmatically possible). They ...
Difference between Array and List in scala
...at you should (probably) be using it much more than an Array (which is actually mutable - the immutable analog of Array is IndexedSeq).
If you are coming from a Java background, then the obvious parallel is when to use LinkedList over ArrayList. The former is generally used for lists which are only...
Creating stored procedure and SQLite?
...than in a separate SQL engine process. So it makes more sense to implement all your business logic including what would have been SP code in the host language.
You can however extend SQLite with your own user defined functions in the host language (PHP, Python, Perl, C#, Javascript, Ruby etc). You ...
What's the difference between belongs_to and has_one?
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They essentially do the same thing, the only difference is what side of the relationship you are on. If a User has a Profile, then in the User class you'd have has_one :profile and in the Profile class you'd have belongs_to :user. To det...