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What is the difference between include and extend in Ruby?
Just getting my head around Ruby metaprogramming. The mixin/modules always manage to confuse me.
6 Answers
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How to scale down a range of numbers with a known min and max value
So I am trying to figure out how to take a range of numbers and scale the values down to fit a range. The reason for wanting to do this is that I am trying to draw ellipses in a java swing jpanel. I want the height and width of each ellipse to be in a range of say 1-30. I have methods that find t...
Why does Maven have such a bad rep? [closed]
There is a lot of talk on the internet about how Maven is bad. I have been using some features of Maven for a few years now and the most important benefit in my view is the dependency management.
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What do (lambda) function closures capture?
Recently I started playing around with Python and I came around something peculiar in the way closures work. Consider the following code:
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jQuery: Select data attributes that aren't empty?
I'm trying to select all elements that have a data-go-to attribute that is not empty.
11 Answers
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How to make a Java class that implements one interface with two generic types?
I have a generic interface
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Best practices for SQL varchar column length [closed]
Every time is set up a new SQL table or add a new varchar column to an existing table, I am wondering one thing: what is the best value for the length .
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Why doesn't Python have a sign function?
I can't understand why Python doesn't have a sign function. It has an abs builtin (which I consider sign 's sister), but no sign .
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Can someone explain the dollar sign in Javascript?
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9 Answers
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Are Mutexes needed in javascript?
I have seen this link: Implementing Mutual Exclusion in JavaScript .
On the other hand, I have read that there are no threads in javascript, but what exactly does that mean?
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