Variables are so important to the design systems, but a fun way to learn how to use them is through Component-Based Prototyping. Today, we'll walk through how to have a life ratings app with incrementing controls that update the graph above. The first step is to turn the graph fills into a component set. Each step on the graph will be a unique variant with a number as the name. When you add the component to the chart, also apply a variable to that component. After that, add two click interaction

Compiler Design: Loop Optimization