method

slice!

Ruby on Rails latest stable (v6.1.7.7) - 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 containing the removed key/value pairs.

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

Show source

# File activesupport/lib/active_support/core_ext/hash/slice.rb, line 10
  def slice!(*keys)
    omit = slice(*self.keys - keys)
    hash = slice(*keys)
    hash.default      = default
    hash.default_proc = default_proc if default_proc
    replace(hash)
    omit
  end

slice!

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