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Contents
require 'arrayfields'
#
# the class Array has only a few added method, one is for setting the fields,
# when the fields are set for an array THIS INSTANCE ONLY will be modified to
# allow keyword access. other arrays will not be affected!
#
a = [0,1,2]
fields = ['zero', 'one', 'two']
a.fields = fields # ONLY the Array 'a' is affected!
#
# keyword access is now allowed for many methods
#
p a['zero'] #=> 0
p a['one'] #=> 1
p a['two'] #=> 2
p a.at('one') #=> 1
p a.values_at('zero', 'two') #=> [0, 2]
#
# assigmnet is allowed
#
a['zero'] = 42
p a['zero'] #=> 42
#
# assignment to non-fields results in the element being appended and the field
# being added for future use (also appended)
#
p(a.fields.join(',')) #=> "zero, one, two"
p a['three'] #=> nil
a['three'] = 3
p(a.fields.join(',')) #=> "zero, one, two, three"
p a['three'] #=> 3
#
# other detructive methods are also keyword enabled
#
a.fill 42, 'zero', len = a.size
p(a.values_at(a.fields)) #=> [42, 42, 42, 42]
a.replace [0,1,2,3]
a.slice! 'two', 2
p a #=> [0,1]
Version data entries
10 entries across 10 versions & 2 rubygems