How to position an element at the end of a flexbox row

Flexbox rows may not work quite the way you think. If you want to have a row of elements, and you want to align one element at the end of the row, many CSS rules won’t work. Floats do not apply to elements using flex, so you can’t use a float:right like you would inside […]

How to Use useEffect (and other hooks) in Class Components

Learn how to use useEffect and other hooks inside of class based components.

Which version of JavaScript is “Vanilla JavaScript”?

There are so many different versions of JavaScript floating around, and browser support is always changing. How do you know which features you can use without transpiling or some kind of build step? Correct Answer: ES6 (a.k.a. ECMAS 2015) is supported in all major browsers. In April of 2017, all major browsers added support for […]

How to Update Content Based on URL params; No Libraries Required

If you’re a frequent user of Netflix or Amazon, then you’re familiar with how they use what they know about you to tailor their platform to your tastes. Personalization is an effective marketing technique. It makes you a more engaged customer, and more likely to get out your wallet. But you don’t have a team of […]

How to Make an AJAX Request Without Using Frameworks or Libraries

There are a lot of JavaScript frameworks out there these days. It makes it harder to choose a front-end development workflow when starting a new project and write code that’s portable between different projects. Also, using a complex framework to solve a simple problem adds unneeded complexity and risk to a project, which makes getting that […]

Building Chrome Extensions: A 15-minute Overview [Video]

How to Remove the Hash From Angular Routes in Rails

When building client-side applications, your URLs are prepended with a hash. Removing this can make your routes more user-friendly and more easily crawled by search engines. Here is how you can remove the hash from your routes in an Angular app built on Ruby on Rails, and use the standard URL structure.

How to Test Controller Concerns in Rails 4

Concerns are a new feature that was added in Rails 4. They allow to clean up the code in your models and controllers. They also allow you to share functionality between models or controllers. However, they can be a bit tricky to test in isolation. In this article, I want to show how you can […]

AngularJS: an Overview

AngularJS is a JavaScript framework made by Google for building complex client-side applications. Angular’s killer feature is ‘directives’ that allow you to extend HTML by creating tags and attributes. Angular projects have a somewhat different structure than other JavaScript MVC frameworks, but it can be highly modular and easy to maintain once you understand the […]

My Eureka Moment With Regular Expressions

Regular expressions are a tough cookie for most programmers to figure out. They are terrifying to look at with their daunting syntax. There is also nothing quite like regular expressions anywhere in programming. Programmers may learn to hack together basic regex expressions, or how to cut and paste some they find online for their needs, […]