React DevTools adds a feature to trigger an error boundary, making testing easier
A new enhancement in React DevTools provides a toggle error button to test Error Boundaries.
Rails 7 replaced byebug with ruby/debug
Rails 7 removed byebug from their default debugger and replaced it with ruby/debug.Ruby 3.1 allows value omission in hash literals
Ruby 3.1 adds the ability to use hash literals without having a value.
Normalizing Redux state to ensure good performance in React apps
In complex applications, client apps have to store and manage a large amount of nested data, and if the data is not normalized, it can be incredibly time-consuming for a program to lookup nested data which could become a performance concern.
Rails 7 adds weekday_select and weekday_options_for_select
Rails 7 adds the `weekday_select` and `weekday_options_for_select` form helpers.
Rails 7 adds `audio` in the metadata for video files
With the addition of `audio` metadata to video blobs, it will now be possible to check the presence of an audio channel in a video file.
ECMAScript 2021 introduces Promise.any() and AggregateError
ECMAScript 2021 introduces Promise.any() method which accepts an iterable of promises and waits for the first promise to fulfill, and its result becomes the outcome. If all the passed promises are rejected, it returns an AggregateError.
Rails 7 adds Marginalia to Query Logs
With this update, Marginalia SQL comments are added to Rails as a native feature!Rails 7 adds support for ActiveStorage expiring URLs
Rails 7 adds the `expires_in` option in the ActiveStorage URL helper for generating expiring URLs.
Keep the React app responsive even during large screen updates with startTransition API introduced in React 18
The newly introduced startTransition API helps to improve the user interactions by categorizing the state updates as urgent and non-urgent.