/ Ruby on Rails
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method

diff

rails latest stable - Class: ActiveSupport::CoreExtensions::Hash::Diff

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v2.3.8) is shown here.

diff(h2)
public

Returns a hash that represents the difference between two hashes.

Examples: 

  {1 => 2}.diff(1 => 2)         # => {}
  {1 => 2}.diff(1 => 3)         # => {1 => 2}
  {}.diff(1 => 2)               # => {1 => 2}
  {1 => 2, 3 => 4}.diff(1 => 2) # => {3 => 4}