From: matt@... (matt neuburg)
Date: 2009-04-04T02:59:33+09:00
Subject: Re: ri is suddenly empty

Fernando Perez <pedrolito@lavache.com> wrote:

> Hi,
> 
> I don't understand what happened: today I wanted to look up for: ri
> Array#unshift, and it had nothing:
> 
> Enter the method name you want to look up.
> You can use tab to autocomplete.
> Enter a blank line to exit.
> 
> >> 
> 
> 
> I tried other classes, and now I always get this error message. How to
> fix that?

Oooh, oooh, call on me teacher, call on me, I know I know. It's because
you've defined an alias of "ri"; it now stands for "ri -i". When "ri"
stands for "ri -i", it ignores the argument that follows. Instead, it
presents the ">>" prompt, and *now* you can type the name of what you
want to look up. So:

Big-iMac-Attack:~ mattneub$ ri -i

Enter the method name you want to look up.
You can use tab to autocomplete.
Enter a blank line to exit.

>> Array#unshift
---------------------------------------------------------- Array#unshift
     array.unshift(obj, ...)  -> array

     From Ruby 1.8
------------------------------------------------------------------------
     Prepends objects to the front of array. other elements up one.

        a = [ "b", "c", "d" ]
        a.unshift("a")   #=> ["a", "b", "c", "d"]
        a.unshift(1, 2)  #=> [ 1, 2, "a", "b", "c", "d"]

>> 
Big-iMac-Attack:~ mattneub$ 

Notice the blank line at the end (I hit Return) in order to get out of
interactive mode. m.


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