Ruby Tutorial for beginners

Ruby
1

Hi All,

This is to let you know that my good friend, Satish T. has put
together
an excellent site â?? Learning R. here â??
http://sitekreator.com/satishtalim/index.html

This is based on his Ruby study notes made while he studied Ruby
himself,
from various online Ruby resources like tutorials, blogs and Ruby
documentation. A site I would definitely recommend for Ruby newbies.

Thanks
Dibya P.

2

Neat thanks for the heads up.

3

One quick question in one of his examples he states that using single
quotes for strings is more efficient, why is this?

4

I see thanks for the info.

5

On 10/14/06, Kevin O. [email protected] wrote:

One quick question in one of his examples he states that using single
quotes for strings is more efficient, why is this?

I believe the theory goes that using single quotes means that there is
no
interperlation required, and therefore less work for the interpereter.
Thus
faster.

This was discussed here a few of weeks ago, with some benchmarks that
seemed
to indicate that there
really isn’t much difference between the two.

I’m not sure that the thread ended up reaching a conclusion though.

6

Hi Dibya,

On 10/14/06, Dibya P. [email protected] wrote:

Hi All,

This is to let you know that my good friend, Satish T. has put together
an excellent site ? Learning R. here ?
- Log In

Great turtorial, It was covered what a newbie need to learn about Ruby.

Thanks for the info, also thanks to Satish for a great Ruby stuff.

Regards,

7

On 10/14/06, Devin M. [email protected] wrote:

singles make less line noise.
Yes, the reason for single over double quotes isn’t about performance.

Personally, I try (or at least tend) to use single quotes unless I
need something which they don’t give me like interpolation and escaped
characters.

–
Rick DeNatale

My blog on Ruby
http://talklikeaduck.denhaven2.com/

8

On 10/15/06, Rick DeNatale [email protected] wrote:

On 10/14/06, Devin M. [email protected] wrote:

Personally, I try (or at least tend) to use single quotes unless I
need something which they don’t give me like interpolation and escaped
characters.

Same here…

Thanks

Dibya P.
Blog: http://dibya.wordpress.com

–

9

Daniel N wrote:

I’m not sure that the thread ended up reaching a conclusion though.

No, it didn’t. The hypothesis was that the parser has a little easier
time with non-interpolated strings, and the benchmarks didn’t test that.
They had N.times { “blah blah” } when they should have had N.times {
eval ‘“blah blah”’ }.

That said, it’s hardly a reason to go for single quotes. I mean, the
quintessence of premature optimization dude. /That/ said, I think the
singles make less line noise.

Devin

10

On Oct 14, 2006, at 8:41 PM, Devin M. wrote:

Daniel N wrote:

I’m not sure that the thread ended up reaching a conclusion though.

No, it didn’t. The hypothesis was that the parser has a little
easier time with non-interpolated strings, and the benchmarks
didn’t test that. They had N.times { “blah blah” } when they should
have had N.times { eval ‘“blah blah”’ }.

We did that too:

http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/216376

James Edward G. II

11

On 10/14/06, Firman W. [email protected] wrote:

Great turtorial, It was covered what a newbie need to learn about Ruby.

Thanks for the info, also thanks to Satish for a great Ruby stuff.

Thanks Firman

Dibya P.
Blog: http://dibya.wordpress.com

Regards,

12

Hal F. wrote:

I find the double quotes more intuitive, but it’s a microscopic
difference and probably has to do with my years of C and BASIC
(notwithstanding the years of Pascal and Fortran).

Seconded. Though recently, my fingers protest against my Java day job
where double-quotes are the only thing I hit Shift for. (I make heavy,
heavy abuse of autocomplete.)

David V.

13

I am developing a Ruby tutorial as well. I will be covering CGI
integration and database programming too. I will also try ti hit web
caching and cookies for web programmers.

14

Devin M. wrote:

singles make less line noise.
A common convention is to use single quotes unless there is
a reason to use double quotes. I sometimes follow that, but
frequently forget.

I find the double quotes more intuitive, but it’s a microscopic
difference and probably has to do with my years of C and BASIC
(notwithstanding the years of Pascal and Fortran).

Hal

15

On Oct 15 2006, 12:06 pm, David V. [email protected] wrote:

Seconded. Though recently, my fingers protest against my Java day job
where double-quotes are the only thing I hit Shift for. (I make heavy,
heavy abuse of autocomplete.)

Seriously? What about common operators like “+”, “*”, “&&”, and “||”?
I don’t see how autocomplete would help with those.