CODEWITHSUNDEEP
rubypry
Snowcrash
Snowcrash

Reputation: 86367

Ruby: Error: Cannot locate this method: String.

Any idea why certain documentation does not work when using show-doc in pry? E.g. see show-doc with String and Array compared to Set here:

show-doc Set

From: /Users/snowcrash/.rvm/rubies/ruby-2.0.0-p195/lib/ruby/2.0.0/set.rb @ line 3:
Class name: Set
Number of lines: 57

--
set.rb - defines the Set class
++
Copyright (c) 2002-2008 Akinori MUSHA <[email protected]>

Documentation by Akinori MUSHA and Gavin Sinclair.

All rights reserved.  You can redistribute and/or modify it under the same
terms as Ruby.

  $Id: set.rb 37839 2012-11-24 18:51:45Z knu $

== Overview

This library provides the Set class, which deals with a collection

show-doc String
Error: Cannot locate this method: String.
[7] pry(main)> show-doc Array
Error: Cannot locate this method: Array.

Upvotes: 3

Views: 1512

Answers (3)

Sachin Singh
Sachin Singh

Reputation: 7225

try installing pry-doc gem:

gem install pry-doc

OR

as per @JayKilleen

if you are using pry in your rails environment you can also try installing jazz_hands instead github.com/nixme/jazz_hands which brings pry and other gem functionality into rails console.

Upvotes: 8

sawa
sawa

Reputation: 168259

String and Array are built-in classes written in C, and you do not have the documentation for them unless you installed them. Set is written in Ruby, and you probably have the documentation as part of the library.

Upvotes: 1

benbot
benbot

Reputation: 1273

String and Array aren't methods, they're classes. That's probably why it's giving you that error there.

Upvotes: 1

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