diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/array/access.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/array/access.rb | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/array/access.rb b/activesupport/lib/active_support/core_ext/array/access.rb new file mode 100644 index 0000000000..fce319d3c6 --- /dev/null +++ b/activesupport/lib/active_support/core_ext/array/access.rb @@ -0,0 +1,28 @@ +module ActiveSupport #:nodoc: + module CoreExtensions #:nodoc: + module Array #:nodoc: + # Makes it easier to access parts of an array. + module Access + # Returns the remaining of the array from the +position+. + # + # Examples: + # %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 + def from(position) + self[position..-1] + end + + # Returns the beginning of the array up to the +position+. + # + # Examples: + # %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 ) + def to(position) + self[0..position] + end + end + end + end +end |