From: Jules Jacobs <julesjacobs@...>
Date: 2006-01-30T02:05:38+09:00
Subject: Syntax

Hi,

Which syntax do you like most?

1. if
-----

# block-by-indentation

if a == 10
  print a

# Java/C, etc style

if(a == 10)
{
  print(a);
}

# Ruby style

if a == 10
  print a
end

2. Rails' link_to
-----------------

link_to 'Show', :action => :show, :id => @post

link_to 'Show', action: 'show', id: @post

link_to 'Show', action: :show, id: @post

link 'Show', to: {action: 'show', id: @post}

3. Classes
----------

# Ruby

class Foo
  def method
    print 'hi'
  end
end

# Indentation

class Foo
  def method
    print 'hi'

4. Loop
-------

5.times i
  print i

5.times do |i|
  print i
end

for 0, 5, i
  print i
end

5. Map
------

arr = [1, 2, 3]

arr.map{|e| e * 2}

arr.map do |e|
  e * 2
end

arr.map(e, e * 2)

arr.map(e * 2) # variable is 'e' (element) by default

or maybe:

arr = new Array();
arr.add(1);
arr.add(2);
arr.add(3);

for(i = 0; i < arr.length(); i++)
{
  arr[i] = arr[i] * 2;
}

;-)

--------------

I am trying to imagine the 'perfect' scripting language (for me, at 
least ;-)). Ruby is close, but I prefer a different syntax in some 
cases. I find the indentation-based code-blocks nicer than 
do...end-blocks.

I also prefer this:

arr.map(e, e * 2)

or:

# parentheses are optional
arr.map e, e * 2

to this:

arr.map{|e| e * 2}

I'm not sure whether or not default variable names like this:

arr.map(e * 2)

are a good thing...

What do YOU like, and why?

Thanks in advance,

Jules

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