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A primer on avoiding duplicates in database tables that back your multi-threaded Rails applications with runnable examples

Bring your brand color to built-in HTML form inputs with one line of code.

I didn't much care for vanilla JavaScript prior to ES6. Through all of the 2000s, I chased different approaches to avoid writing too much of it. First there was RJS (Ruby-to-JavaScript). Then there was CoffeeScript. Both transpiling approaches that turned more enjoyable-to-write source code into the kind of JavaScript that browsers wou...

A statesmanlike state machine library. Contribute to gocardless/statesman development by creating an account on GitHub.

©2021 Marco Colli, Founder / CTO @ Pushpad - Web Push Notifications

Let's dive into Bullet and find out how it can help you identify some database-related problems.

An object that encapsulates access to an external system or resource

Typescript namespaces prevent bloated global scope and support distributed development. Learn when you'll need namespaces and how to use them.

Turbo is great. Here are a few things you should know as you begin to use it to add dynamic behavior to your app.

Exclamation mark notation and casting as unknown

Typescript, oh I love it. Take stackoverflow survey, or ask any developer, most of them do. All major...

Need to dynamically update fields when a user changes a select box? We can do that easily in Rails using Hotwire's Turbo Stream actions.

Hello! Long time no see! Back in December, we decided to start working on our next major release, the...

For the past year, the [Sorbet](https://sorbet.org/) team has been working on an

Here’s what I think: if you are building websites, you don’t need React (in most cases). I have been...

ES2021 as approved by the Ecma General Assembly

Now that cross-browser support is at a tipping point, it's a good time to take a look at logical properties and values. If you're creating a website in

RubyMine 2021.2 Release Candidate is available! Here’s a quick roundup of the most notable new features being introduced in the upcoming 2021.2 release: Ruby and RBS RubyMine now supports most of t

Dr. Axel Rauschmayer looks at JSON modules, which is already live in Chrome 91 (but nothing else). It looks just like an ES Modules-style import, only you

Easily and efficiently make your ActiveRecord models support hierarchies - ClosureTree/closure_tree

A new music creation plug-in uses machine intelligence to compose songs on the fly that match the visual tone and rhythm of creators’ videos.

In this tutorial, we are going to learn about how to get the html elements from an Iframe in JavaScript. Consider we have a following…

Why use Hotwire? Rails views can sometimes be fast and work perfectly, but some other...

Learn how to build scalable, role-based SSH access with SSH certificates and HashiCorp Vault.

The pattern with horizontal scroll is frequently found in mobile versions of sites. For example, on...