Comments on: Ruby’s Most Underused Keyword

By: Bookmarks for marzo 11th from 02:00 to 02:00 | Bloggerman

Bookmarks for marzo 11th from 02:00 to 02:00 | Bloggerman — Thu, 11 Mar 2010 00:01:47 +0000

[...] Ruby, Rails, Web2.0 » Blog Archive » Ruby’s Most Underused Keyword – [...]

By: Ruby, Rails, Web2.0 » Blog Archive » Ruby’s Most Underused Keyword | Web2.0时代

Mon, 16 Feb 2009 14:57:59 +0000

[...] the original here: Ruby, Rails, Web2.0 » Blog Archive » Ruby’s Most Underused Keyword argus-panoptes, attending, block, code, february-6th, magnus, news, peter, peter-cooper, redo, [...]

By: citizen428.blog()

citizen428.blog() — Mon, 09 Feb 2009 11:35:21 +0000

Some quick Ruby tips...

Good news for OS X users: Priit Haamer provides documentation for Ruby 1.9 and Rails as dictionaries for Dictionary.app, which makes them searchable by Spotlight (Ruby documentation, Rails documentation!#

There also was a nice discussion over the la...

By: Marko

Marko — Sun, 08 Feb 2009 22:37:13 +0000

Here’s how I once used redo. To generate a feed of user’s activity, I wanted to have an item like “posted 3 videos: x y z”. In order to achieve that, I’d loop over a mixed up array of all kinds of activities… Once I begin catching videos, I’d detect hitting a non-video item, render the partial for them and redo.

By: Ennuyer.net » Blog Archive » 2009-02-08- Today’s Ruby/Rails Reading

Ennuyer.net » Blog Archive » 2009-02-08- Today’s Ruby/Rails Reading — Sun, 08 Feb 2009 11:12:53 +0000

[...] Ruby’s Most Underused Keyword [...]

By: tieTYT

tieTYT — Sun, 08 Feb 2009 03:09:38 +0000

I think all 3 of these keywords are bad and here’s why: It makes it hard to refactor your code. Look at this pseudo code:

for (…)
…
if done
…
break
end if
if goToNext
…
next
end if
if restartBlock
…
redo
end if
…
}

Now, let’s say the “if done” block gets so big that you want to extract a method out of it:

myIfDoneMethod
…
break
end method

Oops, this won’t work… “break” makes no sense in a method without a loop. So now you’ve gotta change the loop and the method to have a condition that simulates “break”. If you wrote your loop with the condition in the first place, you wouldn’t have to deal with this.

By: peter

peter — Sun, 08 Feb 2009 02:34:59 +0000

No, it’s better than that The equivalent of continue is next; there is no redo() equivalent in C.

By: Rick

Rick — Sun, 08 Feb 2009 00:29:39 +0000

Is it like, continue (in C)? If it is, then it’s awesome.

By: peter

peter — Sat, 07 Feb 2009 23:02:32 +0000

JeffMo: Oh yeah, the Ruby golf problem rocks. Only Magnus’s solution rocks even more

By: Magnus Holm

Magnus Holm — Sat, 07 Feb 2009 22:48:53 +0000

JeffMo: Agreed. Methods, conditions, loops, iterators, break, next and redo; they’re all gotos on crack.