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E14 Mouse Follower

✓ Published1🌍 Public
VVanessa
Last edited Jan 31, 2021
Created on Jan 4, 2021

A yellow circle follows the mouse cursor across an SVG canvas, moving smoothly as the pointer travels. The example demonstrates interaction with React by using the `useState` hook to store the mouse's x and y coordinates, updating them via the `onMouseMove` event. The `useCallback` hook memoizes the event listener to optimize performance, while `ReactDOM.render` mounts the component. The circle's position is bound directly to the state, leveraging unidirectional data flow to keep the visualization in sync with user input.

AI-generated description

Follows your mouse with a circle

Datavis 2020 Episode 14 - Interaction With React https://www.youtube.com/watch?v=9zzIwsASgeo

Uses unidirectional data flow (the useState hook), and memoization of event listeners (the useCallback hook).

MIT Licensed

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