Practice 0 of Mouse Follower

Mouse Follower

A yellow circle follows the mouse cursor across a fixed 960 by 500 SVG canvas. The example demonstrates real-time mouse tracking with React 16.9.0, using the `useState` and `useCallback` hooks to manage cursor coordinates. The `onMouseMove` event on the SVG element updates the circle’s `cx` and `cy` attributes, causing it to smoothly track the pointer. The code renders a single SVG circle with no data source, purely illustrating interactive state updates in a React-driven visualization.

Nnncis

Mouse Follower

A yellow circle inside an SVG canvas tracks the mouse cursor, updating its position in real time. Built with React and rendered as SVG, the app uses a `useState` hook to store the cursor’s coordinates and a `useCallback` handler that listens to the SVG’s `onMouseMove` event, updating the circle’s `cx` and `cy` attributes accordingly. The example demonstrates a simple interactive pointer-following visual.

Ssuserocc

Mouse Follower

A yellow circle follows the mouse cursor across a full-screen SVG canvas, using React state to track and render its position. The app listens for `mousemove` events on the SVG element, extracting `clientX` and `clientY` coordinates via `useCallback` and updating the circle’s `cx` and `cy` attributes through `useState` and `ReactDOM.render`. This demonstrates a simple interactive pattern with React’s declarative rendering and SVG’s coordinate system.

LLai Yi Ohlsen

Mouse Follower

A yellow circle with a black outline follows the mouse cursor across a 960-by-500 SVG canvas. The example uses React's `useState` and a callback to track the cursor's `clientX` and `clientY` coordinates, updating the circle's `cx` and `cy` attributes directly on mouse movement. This demonstrates interactive SVG rendering within a React component, with the circle’s position driven entirely by user input.

TTousifAhamed

Mouse Follower

A yellow circle follows the mouse cursor across a 960 by 500 SVG canvas. The sketch uses React's `useState` to track the pointer's `clientX` and `clientY` coordinates from the `onMouseMove` event, updating the circle's `cx` and `cy` attributes in real time. The example demonstrates a minimal interactive SVG render loop with React 17 and ReactDOM.

Zzhangwbhi

Mouse Follower

A single yellow circle with a black stroke follows the mouse cursor across a full-screen SVG canvas. The circle’s position updates to the exact coordinates of the pointer via React’s `useState` and `useCallback` hooks, which capture `clientX` and `clientY` from the `onMouseMove` event. The application uses ReactDOM to render the SVG element, with the viewport dimensions derived from `window.innerWidth` and `window.innerHeight`. The example demonstrates basic pointer tracking with a minimal, event-driven React component.

JJBayne07

Mouse Follower

A yellow circle follows the mouse pointer across an SVG canvas in this React-based visualization. The app tracks mouse movements through the SVG's `onMouseMove` event handler, updating the circle's `cx` and `cy` attributes via React's `useState` hook. The example demonstrates real-time, state-driven rendering using React 16.9 and ReactDOM, with the circle positioned at the cursor's client coordinates on a 960x500 viewport.

KKonJoDot

Mouse Follower

A yellow circle follows the mouse cursor across a full-window SVG canvas in this React application. The visualization tracks pointer movement using the SVG `onMouseMove` event, which updates the circle's `cx` and `cy` coordinates in real time. The circle's position is stored in React state and re-rendered on every mouse move, while its radius remains fixed at 50 pixels. The program uses React 16.9 with a custom event handler to create an interactive, responsive display that maps the cursor's screen coordinates directly to the SVG coordinate space.

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