Leigh Halliday

Leigh Halliday is a full-stack developer specializing in React and Ruby on Rails. He works for FlipGive, writes on his blog, and regularly posts coding tutorials on YouTube.

JavaScript Developer Central
Observing Visibility in React

The IntersectionObserver API allows us to track the visibility of HTML elements, but how do you use it within React?

by Leigh Halliday

October 16, 2019 Share
JavaScript Developer Central
Finite State Machines in React

Making a video player in React should be easy, right? A boolean value can keep track of whether it is playing or not... but has the video been loaded yet? And how can we determine if it is paused or if it has just reached the end of the track? A Finite State Machine can help us define these different states and how one transitions to the next. Using XState within React can help us make complicated UIs easier to understand.

by Leigh Halliday

September 26, 2019 Share
Web Developer Central JavaScript
Forms in React

Forms in React come down to 3 things: Data, Validations, and Submission. See how to handle these yourself or using Formik to make things simpler.

by Leigh Halliday

September 05, 2019 Share
Developer Central Mobile Web JavaScript
Maps in React

Knowing the similarities and differences between Google Maps and MapBox within a React app will help you pick the right tool for the job. This article compares and contrasts these two popular libraries, getting you up and running with whichever one you choose.

by Leigh Halliday

August 20, 2019 Share
Developer Central JavaScript
Mocking and Testing GraphQL in React

Having fast and consistent results is vital to testing effectively. Working with and testing your React components that use GraphQL queries is no exception. In this article, we'll explore both static and dynamic mocking options.

by Leigh Halliday

July 31, 2019 Share

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Leigh Halliday

Observing Visibility in React

Finite State Machines in React

Forms in React

Maps in React

Mocking and Testing GraphQL in React

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Leigh Halliday

Observing Visibility in React

Finite State Machines in React

Forms in React

Maps in React

Mocking and Testing GraphQL in React

Technologies

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