Unicorn allows you to specify the maximum number of workers. In development this could be useful if you use a...
The bin/webpack-dev-server command is not as smart as e.g. rails server, where it shows the proper fix within the error...
I got this error after upgrading Ruby from 2.4.5 to 2.6.4 when I opened the Rails console - rails server still...
When using Chrome for Selenium tests, the chromedriver binary will be used to control Chrome. To debug problems that stem...
With this gem your transaction blocks raise an error when they have side effects that cannot be rolled back.
CSS transitions are a simple animation framework that is built right into browsers. No need for Javascript here. They're...
Rails is split into a large number of (sub-) frameworks. The most important and central of those are activesupport (extends...
Capistrano automatically logs each (successful) deployment into a file on your application servers. It is located at the root of...
When an AJAX request raises an exception on the server, Rails will show a minimal error page with only basic...
webpack is a very powerful asset bundler written in node.js to bundle (ES6) JavaScript modules, stylesheets, images, and other assets...
Travis changed their default distribution from Ubuntu 14.04 (trusty) to 16.04 (precise). This might break your test setup for new...
The issue in this card can occur if the node_modules directory is checked into your Git repository. We usually...
When deploying with capistrano it's possible you get this "error" message: *** [err :: example.com] There are no Phusion Passenger-served...
Webpacker can automatically create an icon font from SVG files, which is really handy. When you're using the asset...
TL;DR Most web applications do not require action on this. SameSite=None (old browser default) will continue to work...
Was ist Elastic? Suchmaschine, basierend auf Apache Lucene größtenteils Open-Source einige kommerzielle Features ("Elastic Stack", früher "X-Pack") Zugriffsrechte...
This is a short overview of things that are required to upgrade a project from the Asset Pipeline to Webpacker...
In Rails, we usually have a mailer setup like this: class MyMailer < ActionMailer::Base def newsletter mail to: 'receiver@host.tld',
Many mail clients do not support external style sheets. Some even require all styling inline, which means you'll have...
When we want to use our own (or bought) fonts in an application with Webpack(er), we have two options...
When you have a powerful machine with many CPU cores, you might run into an error like
From at least Rails 4, the ActionView tag helper turns Array values of HTML options into a single space-separated...
Webpacker is Rails' way of integrating Webpack, and version 4 has been released just a few days ago, allowing us...
RSpec >= 3.3 added aggregate_failures, which allows multiple failures in an example and list them all, rather than aborting on...