Module: ActiveSupport::CoreExtensions::Array::Access
- Included in:
- Array
- Defined in:
- lib/active_support/core_ext/array/access.rb
Overview
Makes it easier to access parts of an array.
Instance Method Summary collapse
-
#fifth ⇒ Object
Equal to
self[4]
. -
#forty_two ⇒ Object
Equal to
self[41]
. -
#fourth ⇒ Object
Equal to
self[3]
. -
#from(position) ⇒ Object
Returns the tail of the array from
position
. -
#second ⇒ Object
Equal to
self[1]
. -
#third ⇒ Object
Equal to
self[2]
. -
#to(position) ⇒ Object
Returns the beginning of the array up to
position
.
Instance Method Details
#fifth ⇒ Object
Equal to self[4]
.
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# File 'lib/active_support/core_ext/array/access.rb', line 42 def fifth self[4] end |
#forty_two ⇒ Object
Equal to self[41]
. Also known as accessing “the reddit”.
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# File 'lib/active_support/core_ext/array/access.rb', line 47 def forty_two self[41] end |
#fourth ⇒ Object
Equal to self[3]
.
37 38 39 |
# File 'lib/active_support/core_ext/array/access.rb', line 37 def fourth self[3] end |
#from(position) ⇒ Object
Returns the tail of the array from position
.
%w( a b c d ).from(0) # => %w( a b c d )
%w( a b c d ).from(2) # => %w( c d )
%w( a b c d ).from(10) # => nil
%w().from(0) # => nil
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# File 'lib/active_support/core_ext/array/access.rb', line 12 def from(position) self[position..-1] end |
#second ⇒ Object
Equal to self[1]
.
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# File 'lib/active_support/core_ext/array/access.rb', line 27 def second self[1] end |
#third ⇒ Object
Equal to self[2]
.
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# File 'lib/active_support/core_ext/array/access.rb', line 32 def third self[2] end |
#to(position) ⇒ Object
Returns the beginning of the array up to position
.
%w( a b c d ).to(0) # => %w( a )
%w( a b c d ).to(2) # => %w( a b c )
%w( a b c d ).to(10) # => %w( a b c d )
%w().to(0) # => %w()
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# File 'lib/active_support/core_ext/array/access.rb', line 22 def to(position) self[0..position] end |