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havenwood/each.rb

Created July 5, 2022 18:44
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An example of why we use `each` rather than `for` and what semicolon block args do for #ruby IRC
Raw
each.rb
foo = :untouched
bar = :untouched
[:touched].each do |foo|
bar = :touched
end
foo #=> :untouched
bar #=> :touched
Raw
each_semicolon.rb
foo = :untouched
bar = :untouched
[:touched].each do |foo; bar|
bar = :touched
end
foo #=> :untouched
bar #=> :untouched
Raw
for.rb
foo = :untouched
bar = :untouched
for foo in [:touched]
bar = :touched
end
foo #=> :touched
bar #=> :touched
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