React 17 runs useEffect cleanup functions asynchronously
React 17 executes useEffect cleanup functions asynchronously, improving the performance of large applications.
Rails 7 adds encryption to ActiveRecord
Rails 7 supports application-level encryption. We can declare which attributes should be encrypted and, ActiveRecord will encrypt and decrypt when necessary.
Rails 7 ensures has_one autosave association callbacks get called once
In Rails 7, the autosave association callbacks for the has_one are non-cyclic.Redux 4.1.0 converts error messages from strings to error code indexes
Redux 4.1.0 extracts error messages from production build, converts them into error code indexes, thereby shrinking the bundle size.
Rails 7 allows access to nested encrypted secrets by method calls
We can now access nested secrets stored in credentials.yml.enc using the dot (.) syntax instead of using [ ]Rails 7 adds disable_joins: true option to has_one :through association
In multiple database applications, associations can't join across databases. When set, Rails makes 2 or more queries rather than using join for associations.
Rails 7 adds `Enumerable#sole` to return a sole item in the enumerable
Enumerable#sole returns the sole item in the enumerable and raises an exception if no items or more than one item is found.
Rails 7 adds range serializer for ActiveJob
ActiveJob in Rails 7 allows a range to be passed as an argument to perform method.Ruby 3.1 Enumerable#tally now accepts an optional hash to count occurrences
Ruby 3.1 extends the functionality of the Enumerable#tally method introduced in Ruby 2.7. We can now pass another hash whose counts would be added to the resulting tally hash.Ruby 3.1 adds Array#intersect? method
Ruby Array#intersect? method will return true or false based on common elements present in the two arrays.