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.

Web React
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
October 10, 2019 8 min read Share
Web React
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
October 10, 2019 8 min read Share
Web
IndexedDB—A Database in the Browser (Part 2)

When localStorage and cookies reach their limits, when their thread blocking nature slow your app down, it's time to reach for IndexDB. But why live with the low-level API that can be clumsy to get the hang of? Reach for PouchDB and start taking advantage of this asynchronous, performant browser storage today.

by Leigh Halliday
May 27, 2021 6 min read Share
Web
Storage Options in the Browser (Part 1)

Should you use localStorage or cookies to store your authentication token? What are the tradeoffs to each approach and how can you tie them all together? Did you know that localStorage can even be used to synchronize logout across multiple tabs?

by Leigh Halliday
May 27, 2021 9 min read Share
Web
Converting Callbacks to Promises

With promises, we get the ability to use async/await — syntax that can convert nested, hard-to-read functions into straightforward and easy-to-digest code. Let's take a look at how we can convert our own legacy code or other browser APIs such as geolocation, which still rely on callbacks, into Promise-ready functions.

by Leigh Halliday
May 27, 2021 7 min read Share