instance method `pick`

Ruby on Rails 6.1.7.10

Since v6.1.7.10

Available in: v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

pick(*keys)

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"]

Parameters

keys rest

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

Defined in activesupport/lib/active_support/core_ext/enumerable.rb line 168 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Enumerable

Signature

Parameters