array_methods.rb
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user_service.rb
array_methods.rb
hash_transform.rb
block_yield.rb
exception_rescue.rb
module_mixin.rb
regex_match.rb
lambda_proc.rb
safe_navigation.rb
metaprogramming.rb
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array_methods.rb
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users.select { |u| u.age >= 18 }↵
.map(&:name)↵
.join(", ")↵
.upcase
0WPM•0%•0:00•0/77(0%)|Ln 1, Col 1
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