How to name things in programming

Re:How to name things in programming by epidemian on Monday May 25, 2015 @10:07AM (#9600062)

I didn't understand the comment on Ruby. Aren't those examples equivalent to?:

    pairs.sort_by(&:last)

No need for defining a block and naming its parameter either.

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Re:How to name things in programming by msellout on Monday May 25, 2015 @11:42AM (#9600439)

Yes, the lambda was equivalent. However, the second example offers that it might be better to be more verbose and avoid the use of anonymous functions. In general, I prefer to define a block and name parameters.

As the slideshow illustrated, it's all about having good taste as an author. Knowing your audience and all that. In fact, that might have been a good point to add to his slides--that different coding styles are appropriate for different teams and projects.

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Re:How to name things in programming by spoiler on Monday May 25, 2015 @01:20PM (#9600860)

I'm not sure if I am misunderstanding your argument, but it seems like you're complaining about the fact you can't pass "functions" to methods that accept a block? You can! :D

    times_two = -> (x) {x*2}       # Proc (lambda)
    times_two = Proc.new {|x| x*2} # Proc
    [7, 13, 19, 23, 31].map(&times_two)

Also, if you want to call a method on the objects, you could do:

    [7, 13, 19, 23, 31].map(&:to_s)

Which is a bizarre syntax, if you ask me (actually, not really if you know how I works in the background, but it still does look bizarre IHMO).

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