When your Rails application is using Redis as its cache store, this is how you can list existing keys:
When you replace parts of the DOM with new HTML, using .innerHTML = newHtml is usually the simplest and fastest option...
Compatibility: Angular 20+ with Jasmine 5.x and Karma 6.x As a default Angular CLI auto-generates test bootstrap...
You want to prevent input to a form field, but all the solutions have side effects: The [readonly] attribute is...
The File System Access API is a new capability of modern browsers that allows us to iterate over selected folders...
Enable local logging for Sentry when: Debugging Sentry event capture locally Testing error handling without polluting production metrics Developing background...
Full-text search can reach its limits in terms of flexibility and performance. In such cases, trigram indexes (pg_trgm...
Quick reference for passing data from Rails to JavaScript via Unpoly compilers. Haml Attribute Syntax # Ising hash rockets and string...
Quick guide for frequently used compiler selector patterns of Unpoly. 1. BEM Component Pattern When: Reusable UI components with multiple...
Performing COUNT(*) on large tables is slow. Sometimes you don’t need the exact number once results exceed a certain...
When RSpec sets out to print any given object to the console, it will never print more than 200 characters...
I had to modify the time for an application that I launch through Docker. Here is an approach that worked...
GoodJob and ActiveJob rescue exceptions internally, preventing exception_notification from triggering. This can cause silent job failures.To get notified, subscribe...
prettier calls itself an opinionated code formatter. I recommend using it for your JavaScript and TypeScript code. prettier only concerns...
There's a method Integer() defined on Kernel, that typecasts everything into an Integer. Integer("2") # 2 Integer("foo") # Invalid...
Rails log files rotate automatically when they reach approx. 100MB: $ ls -lh log/ -rw-r--r-- 1 user group 55M...
If you run a Rails app that is using Turbo, you might observe that your integration tests are unstable depending...
GitLab has a RubyMine plugin that enables you to review and process merge requests within RubyMine! Setup Open RubyMine settings...
The linked MDN article is quite informative of a neat feature supported by all major browsers: Unicode character class escape...
SimpleForm comes with an option browser_validations which could be used to give fields that have a presence validation the...
RSpec examples can get quite long, especially in feature specs. This makes them hard to read & understand. Also, when executing...
In Rails 7.2. the feature ActiveRecord.after_all_transactions_commit was added, for code that may run either inside or outside...
Frontend performance and user experience are orthogonal to feature development. If care is not taken, adding features usually degrades frontend...
The DB schema is the most important source of truth for your application and should be very self-explanatory. If...