instance method `slice!`

Ruby on Rails 3.0.20

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 contained 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 = keys.map! { |key| convert_key(key) } if respond_to?(:convert_key)
    omit = slice(*self.keys - keys)
    hash = slice(*keys)
    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