Latest React topics

A few years ago, React introduced the React Profiler to React v16.5 in the React DevTools plugin available for Chromium browsers (Chrome & CrEdge) and Firefox.

Developers can use the Profiler API to collect timing information about each component that’s rendered in order to identify performance bottlenecks in React applications.

For those of us creating React apps in SharePoint Framework (SPFx) solutions, this is a great resource for building well performing apps for your customers!

Late last year I published a few Jest presets to simplify adding automated testing to your SharePoint Framework (SPFx) projects. These are complete with example tests including testing the rendering of components, testing async functions using promises or callbacks and even simulating user events. You can learn more about the presets in the original post, Enable Jest testing of SharePoint Framework Projects in One Simple Step. In this post, I want to share some updates to the presets that have been published.

When I’m teaching React to developers, one thing that comes up often is dealing with a common error. But here’s the interesting thing: it’s not running into the error that comes up all the time, its how to deal with it that surprises them. I’ve always wanted to have something to point to that the scenario & why one option is better than others, even though there are plenty of ways to address the issue. That’s what this post is!

You know what I don’t like about automated tests? Most of the time, we don’t automate them, we just instrument them. We write our tests and then open a console window to run them periodically. Maybe we set up a watcher to automatically rerun them when either a test or the code file changes, and maybe we use an integrated console window in our editor to monitor when things change.

This month’s update on my Mastering the SharePoint Framework course features the transition from one sprint to the next.

Sprint 12 Complete

I published the final pieces of Sprint 12 this week. This includes a new chapter in the Ultimate Bundle, new lessons in two Fundamentals Bundle chapters and a bunch of fixes! Want to get the details? Join me on Facebook Live for a sprint release party tomorrow, Thursday, November 1 at 1pm ET to see what’s in sprint 12 & get a sneak peek to what is planned for sprint 13, Black Friday/Cyber Monday deals & more!

Many developers picking up the SharePoint Framework are coming from a traditional SharePoint development background. Some of these people server-side developers primarily who may have some client-side development experience while others may have been customizing SharePoint using client-side development techniques for a while.