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Current File : //opt/alt/ruby18/share/ri/1.8/system/Hash/cdesc-Hash.yaml

--- !ruby/object:RI::ClassDescription 
attributes: []

class_methods: 
- !ruby/object:RI::MethodSummary 
  name: "[]"
- !ruby/object:RI::MethodSummary 
  name: new
comment: 
- !ruby/struct:SM::Flow::P 
  body: A <tt>Hash</tt> is a collection of key-value pairs. It is similar to an <tt>Array</tt>, except that indexing is done via arbitrary keys of any object type, not an integer index. The order in which you traverse a hash by either key or value may seem arbitrary, and will generally not be in the insertion order.
- !ruby/struct:SM::Flow::P 
  body: Hashes have a <em>default value</em> that is returned when accessing keys that do not exist in the hash. By default, that value is <tt>nil</tt>.
- !ruby/struct:SM::Flow::P 
  body: <tt>Hash</tt> uses <tt>key.eql?</tt> to test keys for equality. If you need to use instances of your own classes as keys in a <tt>Hash</tt>, it is recommended that you define both the <tt>eql?</tt> and <tt>hash</tt> methods. The <tt>hash</tt> method must have the property that <tt>a.eql?(b)</tt> implies <tt>a.hash == b.hash</tt>.
- !ruby/struct:SM::Flow::VERB 
  body: "  class MyClass\n    attr_reader :str\n    def initialize(str)\n      @str = str\n    end\n    def eql?(o)\n      o.is_a?(MyClass) &amp;&amp; str == o.str\n    end\n    def hash\n      @str.hash\n    end\n  end\n\n  a = MyClass.new(&quot;some string&quot;)\n  b = MyClass.new(&quot;some string&quot;)\n  a.eql? b  #=&gt; true\n\n  h = {}\n\n  h[a] = 1\n  h[a]      #=&gt; 1\n  h[b]      #=&gt; 1\n\n  h[b] = 2\n  h[a]      #=&gt; 2\n  h[b]      #=&gt; 2\n"
constants: []

full_name: Hash
includes: 
- !ruby/object:RI::IncludedModule 
  name: Enumerable
instance_methods: 
- !ruby/object:RI::MethodSummary 
  name: ==
- !ruby/object:RI::MethodSummary 
  name: "[]"
- !ruby/object:RI::MethodSummary 
  name: "[]="
- !ruby/object:RI::MethodSummary 
  name: clear
- !ruby/object:RI::MethodSummary 
  name: default
- !ruby/object:RI::MethodSummary 
  name: default=
- !ruby/object:RI::MethodSummary 
  name: default_proc
- !ruby/object:RI::MethodSummary 
  name: delete
- !ruby/object:RI::MethodSummary 
  name: delete_if
- !ruby/object:RI::MethodSummary 
  name: each
- !ruby/object:RI::MethodSummary 
  name: each_key
- !ruby/object:RI::MethodSummary 
  name: each_pair
- !ruby/object:RI::MethodSummary 
  name: each_value
- !ruby/object:RI::MethodSummary 
  name: empty?
- !ruby/object:RI::MethodSummary 
  name: eql?
- !ruby/object:RI::MethodSummary 
  name: fetch
- !ruby/object:RI::MethodSummary 
  name: has_key?
- !ruby/object:RI::MethodSummary 
  name: has_value?
- !ruby/object:RI::MethodSummary 
  name: hash
- !ruby/object:RI::MethodSummary 
  name: include?
- !ruby/object:RI::MethodSummary 
  name: index
- !ruby/object:RI::MethodSummary 
  name: indexes
- !ruby/object:RI::MethodSummary 
  name: indices
- !ruby/object:RI::MethodSummary 
  name: initialize_copy
- !ruby/object:RI::MethodSummary 
  name: inspect
- !ruby/object:RI::MethodSummary 
  name: invert
- !ruby/object:RI::MethodSummary 
  name: key?
- !ruby/object:RI::MethodSummary 
  name: keys
- !ruby/object:RI::MethodSummary 
  name: length
- !ruby/object:RI::MethodSummary 
  name: member?
- !ruby/object:RI::MethodSummary 
  name: merge
- !ruby/object:RI::MethodSummary 
  name: merge!
- !ruby/object:RI::MethodSummary 
  name: pretty_print
- !ruby/object:RI::MethodSummary 
  name: pretty_print_cycle
- !ruby/object:RI::MethodSummary 
  name: rehash
- !ruby/object:RI::MethodSummary 
  name: reject
- !ruby/object:RI::MethodSummary 
  name: reject!
- !ruby/object:RI::MethodSummary 
  name: replace
- !ruby/object:RI::MethodSummary 
  name: select
- !ruby/object:RI::MethodSummary 
  name: shift
- !ruby/object:RI::MethodSummary 
  name: size
- !ruby/object:RI::MethodSummary 
  name: sort
- !ruby/object:RI::MethodSummary 
  name: store
- !ruby/object:RI::MethodSummary 
  name: to_a
- !ruby/object:RI::MethodSummary 
  name: to_hash
- !ruby/object:RI::MethodSummary 
  name: to_s
- !ruby/object:RI::MethodSummary 
  name: to_yaml
- !ruby/object:RI::MethodSummary 
  name: update
- !ruby/object:RI::MethodSummary 
  name: value?
- !ruby/object:RI::MethodSummary 
  name: values
- !ruby/object:RI::MethodSummary 
  name: values_at
- !ruby/object:RI::MethodSummary 
  name: yaml_initialize
name: Hash
superclass: Object