Components are the core of MJML. A component is an abstraction of a more complex email-responsive HTML layout. It exposes attributes, enabling you to interact with the final component visual aspect.

Trailblazer offers you a new, more intuitive file layout in applications.

Instead of grouping by technology, classes and views are structured by concept, and then by technology. A concept can relate to a model, or can be a completely abstract concern such as invoicing.

Sometimes, systems just scale the problemA UI design system is more than the code of a component library. It’s more than the colors, styles, and margins of your elements. It’s an ever-growing and ever-evolving creature that entails your brand and your user’s feelings.

When using React hooks there is no concept of onMount because the idea of only running some code on mount leads to writing non-resilient components, components that do one thing when they mount, and then don’t take prop changes into account.

A component shouldn’t break because it’s rendered more or less often.

Keep the local state isolated.Think about which state is local to a particular UI representation — and don’t hoist that state higher than necessary.

Props and state can change, and components should handle those changes whenever they happen.

Even if a component is rendered just once, your design will improve if rendering twice doesn’t break it.