Component Design for JavaScript Frameworks

You have seen it before. A Figma file lands in your lap with frames named Group 47 , colors hard-coded as #3A2FBC , and zero indication of which states actually exist. You reverse-engineer the design, fill in the gaps, and ship something that mostly resembles what was intended. This is not a workflow problem. It is a communication problem. And it is one designers can fix on their side of the fence. This article is written for both sides of that handoff. If you are a developer tired of ambiguous specs, here is what well-structured components actually look like. If you are a designer reading this on dev.to because you want to close that gap, welcome. You are already ahead. It covers four fundamentals: Structure , Properties , Tokens , and Interactions . Let's begin if you're prepared to explore! 1. Structure Every frame in Figma corresponds to an HTML element. When you nest frames to build a component, you are essentially defining the HTML structure. This is why it matters deeply how you