Difference between revisions of "Powers Of 2 Range Assignment"
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====exclusive client with block given==== | ====exclusive client with block given==== | ||
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<nowiki>exclusive_powers_of_two = PowersOfTwoRange.new(64) | <nowiki>exclusive_powers_of_two = PowersOfTwoRange.new(64) | ||
exclusive_powers_of_two.each do |n| | exclusive_powers_of_two.each do |n| |
Revision as of 16:07, 11 April 2022
Contents
Reference
Ruby
Code to Implement
PowersOfTwoRange
file: | src/main/ruby/powers_of_two_range/powers_of_two_range.rb | ![]() |
class: | PowersOfTwoRange | |
superclass: | Object | |
methods: | initialize(maximum, inclusive: false) each each_with_index |
initialize(maximum, inclusive: false)
hang onto enough information in instance variables to support each and each_with_index
each
if a block is given, repeatedly yield with appropriate value.
otherwise, return an enum via to_enum.
exclusive client with block given
exclusive_powers_of_two = PowersOfTwoRange.new(64) exclusive_powers_of_two.each do |n| puts n end
outputs
1 2 4 8 16 32
inclusive client with block given
exclusive_powers_of_two = PowersOfTwoRange.new(64, inclusive: true) exclusive_powers_of_two.each do |n| puts n end
outputs
1 2 4 8 16 32 64
exclusive client without block
exclusive_powers_of_two = PowersOfTwoRange.new(64) as_enum = exclusive_powers_of_two.each p as_enum.to_a
outputs
[1, 2, 4, 8, 16, 32]
each_with_index
if a block is given, repeatedly yield with appropriate value and its index.
otherwise, return an enum via to_enum.
Unit Test
file: | src/test/ruby/powers_of_two_range/powers_of_two_range.rb | ![]() |
note: ensure that you have removed all printing to receive credit for any assignment.