Justin has helped readers get more out of their tools since 2009, writing tutorials, features, and reviews for a variety of publications.

The JavaScript innovation train is really picking up momentum lately, driven—as always—by the creativity of the JavaScript developer community. The emerging local-first SQL datastores crystalize ideas ...

Storing data in localStorage is useful, but it's not a good solution when you store data that needs to be shared across multiple devices or browsers. For instance, let's say you want to show a welcome ...