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...
The Ace editor is a great enhancement when you want users to supply some kind of code (HTML, JavaScript, Ruby...
When projects run for many years, they require special regular maintenance to stay fresh. This kind of maintenance is usually...
Accessing pseudo elements via JavaScript or jQuery is often painful/impossible. However, accessing their styles is fairly simple. Using getComputedStyle
jQuery's removeClass removes the given class string from an element collection. If you want to remove multiple/unknown classes matching...
This repository was created with the intention of helping developers master their concepts in JavaScript. It is not a requirement...
Mobile Chrome and Safari support the "web share API" which allow you to use the native share functionality of an...
TL;DR: All modern browsers default to using the element as the main document viewport. In CSS, prefer to set...
Font Awesome 5 is a comprehensive solution for vector icons on your website. Originally, Font Awesome came as an icon...
Cross-Site Request Forgery (CSRF) is an attack pattern for websites. A CSRF attack is usually relevant in a...
A JavaScript error in an E2E test with Selenium will not cause your test to fail. This may cause you...
...HTML's accepts a single file. You can allow multiple files via . But sometimes, selecting multiple files is not enough...
Most forms have a single submit button that will save the record when pressed. Sometimes a form needs additional submit...
At makandra, we've built a few gems over the years. Some of these are quite popular: spreewald (> 1M downloads...
Having a unique selector for an element is useful to later select it from JavaScript or to update a fragment...