Syntax
numbers = [1, 2, 3]
puts numbers.any?(&:even?)
puts numbers.all?(&:positive?)Examples
Ruby enumerable predicates example
A focused example you can adapt while practising.
numbers = [1, 2, 3]
puts numbers.any?(&:even?)
puts numbers.all?(&:positive?)Best practices
- Start with the smallest working example, then adapt it to your project.
- Use the language’s standard library and idioms before introducing extra dependencies.
Runtime & versions
Ruby interpreter. Feature availability depends on the language and runtime version used by your project; consult the official reference below.
Ruby documentation