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Modelling an elevator using Object-Oriented Analysis and Design [closed]
There are a set of questions that seem to be commonly-used in interviews and classes when it comes to object-oriented design and analysis. This is one of them; unfortunately, my OOP professor in college never actually gave an answer to it, and so I've been wondering.
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How to make vim paste from (and copy to) system's clipboard?
... own clipboard. So, it's very hard for me to copy some text from a webpage and paste it into the current working file. It so happens I have to either open gedit or type it manually.
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How are people managing authentication in Go? [closed]
For those building RESTful APIs and JS front-end apps in Go, how are you managing authentication? Are you using any particular libraries or techniques?
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When to choose mouseover() and hover() function?
What are the differences between jQuery .mouseover() and .hover() functions? If they are totally same why jQuery uses both?
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In Python, when should I use a function instead of a method?
...nt "can't kill it."
Moving away from this analogy, why do we use methods and classes? Because we want to contain data and hopefully structure our code in a manner such that it will be reusable and extensible in the future. This brings us to the notion of encapsulation which is so dear to OO design...
ASP.NET MVC Performance
...ebForms. What real performance difference is there, has this been measured and what are the performance benefits.
14 Answer...
Pure virtual function with implementation
My basic understanding is that there is no implementation for a pure virtual function, however, I was told there might be implementation for pure virtual function.
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Rails layouts per action?
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Cool, thanks. And in case someone wants to do simpler things with one-liner the following is possible. Its easy to read and place in top of the controller. --- layout Proc.new{ ['index', 'new', 'create'].include?(action_name) ? 'some_layou...
How to execute a raw update sql with dynamic binding in rails
... to do this generically. You could try accessing the underlying connection and using it's methods, e.g. for MySQL:
st = ActiveRecord::Base.connection.raw_connection.prepare("update table set f1=? where f2=? and f3=?")
st.execute(f1, f2, f3)
st.close
I'm not sure if there are other ramifications t...
How do I calculate the normal vector of a line segment?
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if we define dx=x2-x1 and dy=y2-y1, then the normals are (-dy, dx) and (dy, -dx).
Note that no division is required, and so you're not risking dividing by zero.
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