method

pluck

v5.0.0.1 - Show latest stable - 0 notes - Class: Enumerable

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What's this?

pluck(*keys) public

Convert an enumerable to an array based on the given key.

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

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

Show source

# File activesupport/lib/active_support/core_ext/enumerable.rb, line 83
  def pluck(*keys)
    if keys.many?
      map { |element| keys.map { |key| element[key] } }
    else
      map { |element| element[keys.first] }
    end
  end

pluck

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