2007-12-21 08:48:59 +01:00
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module ActiveSupport #:nodoc:
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module CoreExtensions #:nodoc:
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module Array #:nodoc:
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# Makes it easier to access parts of an array.
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module Access
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2008-05-18 06:22:34 +02:00
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# Returns the tail of the array from +position+.
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2007-12-21 08:48:59 +01:00
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#
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# %w( a b c d ).from(0) # => %w( a b c d )
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# %w( a b c d ).from(2) # => %w( c d )
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# %w( a b c d ).from(10) # => nil
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2008-10-27 07:47:01 +01:00
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# %w().from(0) # => nil
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2007-12-21 08:48:59 +01:00
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def from(position)
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self[position..-1]
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end
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2008-05-18 06:22:34 +02:00
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# Returns the beginning of the array up to +position+.
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2007-12-21 08:48:59 +01:00
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#
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# %w( a b c d ).to(0) # => %w( a )
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# %w( a b c d ).to(2) # => %w( a b c )
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# %w( a b c d ).to(10) # => %w( a b c d )
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2008-10-27 07:47:01 +01:00
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# %w().to(0) # => %w()
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2007-12-21 08:48:59 +01:00
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def to(position)
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self[0..position]
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end
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2008-10-27 07:47:01 +01:00
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# Equal to <tt>self[1]</tt>.
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def second
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self[1]
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end
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# Equal to <tt>self[2]</tt>.
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def third
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self[2]
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end
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# Equal to <tt>self[3]</tt>.
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def fourth
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self[3]
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end
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# Equal to <tt>self[4]</tt>.
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def fifth
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self[4]
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end
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# Equal to <tt>self[5]</tt>.
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def sixth
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self[5]
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end
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# Equal to <tt>self[6]</tt>.
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def seventh
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self[6]
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end
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# Equal to <tt>self[7]</tt>.
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def eighth
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self[7]
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end
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# Equal to <tt>self[8]</tt>.
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def ninth
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self[8]
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end
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# Equal to <tt>self[9]</tt>.
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def tenth
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self[9]
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end
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2007-12-21 08:48:59 +01:00
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end
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end
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end
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end
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