method

extract!

Ruby on Rails latest stable (v3.2.13) - 0 notes - Class: Hash

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What's this?

extract!(*keys) public

Removes and returns the key/value pairs matching the given keys.

{:a => 1, :b => 2, :c => 3, :d => 4}.extract!(:a, :b) # => {:a => 1, :b => 2}

Show source

# File activesupport/lib/active_support/core_ext/hash/slice.rb, line 35
  def extract!(*keys)
    result = {}
    keys.each {|key| result[key] = delete(key) }
    result
  end

extract!

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