A case study of Rails applications making a common Webpacker mistake of rendering modules multiple times on a single page. We'll describe why the problem happens and present a Webpacker Packing Checklist for proper code-splitting.

Navigate the world of Webpacker and webpack on Rails with confidence using this collection of mental maps I put together.

When running Rails system or integration tests, you might be surprised to learn that Webpacker will load your development webpack config. What's the deal?

In this post, we'll take a look at installing and using the webpack-bundle-analyzer, perhaps the most invaluable webpack plugin, to analyze and debug the output of the webpack build in a Rails project configured to use Webpacker.

A new Rails 6 application will install both Webpacker and Sprockets by default. Don't they solve the same problem? This article dives into why Sprockets lives on even though webpack has surpassed most of its features and why you might want to choose one over the other.

Understanding your Rails webpack configuration and build output can be a little confusing, especially if you're new to either Rails or webpack. This post contains a few tips for debugging your Webpacker setup, some specific to Rails Webpacker, some generally applicable to webpack.

Configuring webpack is precisely the main job of Webpacker's NPM package, @rails/webpacker. This post provides an overview of how to customize its default settings for your Rails application.

Configuring Webpacker can be a daunting task. In this guide, we will take a look at the options provided via the webpacker.yml file and supported environment variable overrides.

Upgrading jQuery plugins to work with webpack is a common source of confusion. If you're lucky, you may find they can work in either context such that you might not need jQuery at all.

There are plenty of great reasons to switch to Webpacker, including improvements in supported syntax, development tooling, performance optimizations, and more. For Rails developers considering the upgrade from the Rails asset pipeline, start here.

A reference guide to NPM version constraints for dependencies declared in the package.json file of a Rails project from the perspective of a Ruby developer familiar with similar conventions used to specify Ruby dependencies in a Gemfile.

When I first started working with webpack, I was in for a few surprises. I assumed how things should behave, based on my previous experience with the Rails asset pipeline, only to learn through experience how I was wrong.

Using images bundled by webpack can get confusing. 'How to reference images from JavaScript? from CSS? from Rails ERB templates? This post will demonstrate.

A big issue that comes up with Webpacker is "where to put the JavaScript files". This post demonstrates proper use of entry point files, called packs, with Webpacker and Rails and will help developers avoid a common gotcha.

This time we'll walk through the steps for integrating Bootstrap 4 with Rails and Webpacker 4.

Taking a page of the Rails cookbook, Vue.js manages to provide a great developer experience for those looking to hit the ground running and other wishing to customize their setup.

This post describes a bunch of reasons why developers might enjoy choosing Vue.js as the next JavaScript framework to learn in the coming year.

Though it's often more easier to extract shared behavior as mixins to be used across components in Vue.js, this post describes at a high level how I used abstract components to achieve the same goal and the advantages of doing so.

This post explains why RSpec/Rails users should upgrade to Rails 5.1 and drop the DatabaseCleaner gem for JavaScript-enabled acceptance tests.

This post describes how to make enumerable methods that use blocks to iterate over an internal data structures but don't their enumerable properties and why this would be useful.

Is your Rails app on SSL in production? It may be a good idea to use SSL locally too. It's just that it's typically been a pain to set up. Using SSL for Rails acceptance tests with Capybara has traditionally been even more challenging— until now.

In this tutorial, we'll illustrate the general benefits of extracting data components in Vue.js applications and apply this approach to the PDF viewer application so that multiple child components can share fetched PDF page data.

This tutorial demonstrates how to use Vue to defer fetching and rendering of PDF page data until elements are scrolled into the client browser.

This tutorial demonstrates how to create Vue.js components that can render PDFs along with tools like webpack, PDF.js, and the canvas element.

Our series on building Connect Four with Vue.js continues by setting up automated deployment to Amazon S3 with CircleCI and the command line tool s3deploy