Idiomatic Ruby

Idiomatic Ruby

Idiomatic Ruby favors expressive, readable code: snake_case method and variable names, small focused methods, using existing Enumerable methods instead of manual loops, and letting if/case return values directly rather than assigning inside branches. The Ruby community places a strong emphasis on code reading almost like natural language. Following established style conventions (like the community-maintained Ruby Style Guide) makes code more approachable to other Ruby developers.

Note: Prefer numbers.select(&:even?) over a manual loop with an if-check and array-building -- it reads closer to the intent.

Example: Idiomatic Ruby

numbers = [1, 2, 3, 4, 5, 6]

# Idiomatic: uses built-in Enumerable methods
evens = numbers.select(&:even?)
puts evens.inspect

# Idiomatic: if as an expression
label = if numbers.length > 5 then "long" else "short" end
puts label