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filter_with_select

🔎 Filter Arrays with select​

select returns a new array containing all elements for which the block returns true. It's handy for extracting a subset of data based on conditions. Use select when you want to keep items matching certain criteria.

numbers = [1, 2, 3, 4, 5, 6]\n# Keep only even numbers
evens = numbers.select { |n| n.even? }
# => [2, 4, 6]

users = [
  {name: 'Alice', active: true},
  {name: 'Bob',   active: false}
]
active_users = users.select { |u| u[:active] }
# => [{name: 'Alice', active: true}]