webpack is a very powerful asset bundler written in node.js to bundle (ES6) JavaScript modules, stylesheets, images, and other assets...
RubyMine comes with a nice way to grep through your project's files: The finder (ctrl + shift + f). Don't...
Jasmine has long standing support for writing asynchronous specs. In days gone by we used the done callback to achieve...
The goal is to get Jasmine specs running in a Rails project using Webpacker, with the browser based test runner...
In Ruby on Rails, all objects have a useful blank? method. It returns true for nil but also for empty...
Until Capybara 2, node finders that accept a text option were able to find nodes based on rendered text, even...
It is quite easy to migrate from CoffeeScript to ES6. You can use decaffeinate to convert your CoffeeScript source to...
Over the years we have tried several solution to have vector icons in our applications. There are many ways to...
To keep JavaScript sources small, it can sometimes make sense to split your webpack bundles. For example, if your website...
Download buttons can be difficult to test, especially with Selenium. Depending on browser, user settings and response headers, one of...
We're always striving towards keeping our website's JavaScript as small as possible. If you're using webpack(er...
TL;DR Most web applications do not require action on this. SameSite=None (old browser default) will continue to work...
To avoid multiple versions of a package, you can manually maintain a resolutions section in your package.json. We recommend you...
This is a short overview of things that are required to upgrade a project from the Asset Pipeline to Webpacker...
Fixed bugs where calling valid? would change the record's state.
Here is how to make Rome datepicker look like the rest of your Bootstrap 4 application. Rome comes with very...
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...
See the attached link for a useful overview of modern (and classic) DOM API methods, like matches, contains, append, cssText...
This is a presentation from 2019-01-21. Summary We want to move away from jQuery in future projects
If your app does not need to support IE11, you can use most ES6 features without a build step. Just...
Rails ships with two separate build pipelines: Sprockets ("asset pipeline") and Webpacker. Webpacker has many more moving parts, but allows...
When your code does not behave as expected, you can use a debugger statement ("breakpoint") at any point in your...
In ruby you can easily read and write CSVs with the standard CSV library class. On top of this, you...