Ten Things Every Java Programmer Should Know About Ruby

[Florian Frank]

On Mon, 31 Jan 2005, Aredridel wrote:
Indeed. And the realization that Ruby's interpolation goes beyond
variables, and that the "extra" symbols aren't extra, is one of the
traditional rites of passage

You can do that in Perl, too:

print "1 + 1 = @{[1 + 1]}\n"
1 + 1 = 2

But if one thinks, that Ruby is ugly...

 

[Hal Fulton]

Hi --




Indeed. And the realization that Ruby's interpolation goes beyond
variables, and that the "extra" symbols aren't extra, is one of the
traditional rites of passage

Let's also bear in mind that when there is an @ or a $ starting a variable
name (not an expression), the brackets are optional:

"x: #@myvar"



Hal

 

[David A. Black]

Hi --

On Mon, 31 Jan 2005, Aredridel wrote:
Indeed. And the realization that Ruby's interpolation goes beyond
variables, and that the "extra" symbols aren't extra, is one of the
traditional rites of passage

You can do that in Perl, too:

print "1 + 1 = @{[1 + 1]}\n"
1 + 1 = 2

The usual initial criticism of "#{x}" is that the brackets are "extra"
-- but then when it turns out that that's all you need for arbitrary
amounts of code, they suddenly seem less "extra" than what you'd need
in Perl to do anything similar


David

 

[Stig Sandbeck Mathisen]

Ruby seems to lose here. The syntax #{@myvar} is a rare case of
ugliness.

I've become very fond of using:

"x: %s" % @myvar

....or even

"x: %s, y: %d" % [@myvar,
@myothervar]