Rails 7: Instrument ActiveStorage analyzers

Rails 7 adds instrumentation for ActiveStorage analyzers so that the time of analysis can be tracked.

CSS custom properties

Custom properties give us the ability to set properties at the central place, which can be used whenever required.

Rails 7 adds database-specific setup and reset tasks for multi DB configurations

For multi DB Rails applications starting with Rails 7, we can now setup and reset a particular database.

Rails 7: Add from: option to ActiveSupport::TestCase#assert_no_changes

ActiveSupport::TestCase#assert_no_changes adds additional options.

Cypress version 8.5.0 adds select by index

Cypress introduced the feature to select an option by index within the .select() command.

Deep dive into public and private instance fields in JavaScript (ECMAScript 2022)

Class fields declaration allows declaring fields, up-front making class definitions become more self-documenting. As declared fields are always present, instances go through fewer state transitions. These class fields features would be officially included in ECMAScript 2022.

Essential Skills For A Senior Rails Developer

Programming is a skill and, just like any skill, to get better at it one needs to practice, practice and practice!

Rails Arel Primer

The first look into Arel, its advantages, and examples.

Private fields, methods and, accessors in JavaScript

The class fields proposal provides private fields for classes and instances to JavaScript. With this proposal, any class element can be private.

Rails 7 introduces ActiveModel::API

ActiveModel::API allows adding more functionality to ActiveModel::Model and makes itself a minimum API to interact with Action Pack and Action View.