method

pick

v6.1.3.1 - Show latest stable - 0 notes - Class: Enumerable

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What's this?

pick(*keys) public

Extract the given key from the first element in the enumerable.

[{ name: "David" }, { name: "Rafael" }, { name: "Aaron" }].pick(:name)
# => "David"

[{ id: 1, name: "David" }, { id: 2, name: "Rafael" }].pick(:id, :name)
# => [1, "David"]

Show source

# File activesupport/lib/active_support/core_ext/enumerable.rb, line 168
  def pick(*keys)
    return if none?

    if keys.many?
      keys.map { |key| first[key] }
    else
      first[keys.first]
    end
  end

pick

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