Sha256: 60f7594e115b5d06fb878c7d0c8f73ba34d440000eb58eecab0ebd66fe3e7e82
Contents?: true
Size: 608 Bytes
Versions: 30
Compression:
Stored size: 608 Bytes
Contents
class Array
# returns the first element of a 2-element array.
# useful when dealing with hashes in array form.
# e.g., pairs.map(&:key)
def key
size == 2 or raise 'array must contain exactly two elements'
first
end
# returns the second element of a 2-element array.
# useful when dealing with hashes in array form.
# e.g., pairs.map(&:value)
def value
size == 2 or raise 'array must contain exactly two elements'
last
end
# A backport of Array@to_h from Ruby 2.1
unless instance_methods.include?(:to_h)
define_method(:to_h) do
Hash[self]
end
end
end
Version data entries
30 entries across 30 versions & 1 rubygems