instance method `slice!`

Ruby on Rails 4.0.13

Since v3.0.20

Available in: v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

slice!(*keys)

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

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

Parameters

keys rest

Source

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

Defined in activesupport/lib/active_support/core_ext/hash/slice.rb line 25 · View on GitHub · Improve this page · Find usages on GitHub

Defined in Hash

Signature

Parameters