method

slice!

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

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What's this?

slice!(*keys) public

Replaces the hash with only the given keys. Returns a hash contained the removed key/value pairs

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

Show source

# File activesupport/lib/active_support/core_ext/hash/slice.rb, line 25
  def slice!(*keys)
    keys = keys.map! { |key| convert_key(key) } if respond_to?(:convert_key, true)
    omit = slice(*self.keys - keys)
    hash = slice(*keys)
    replace(hash)
    omit
  end

slice!

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