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@agnott·2 public vizzes
A React-based numeric keypad displays an entered code as bullet points, updating in real time as users click the digit buttons or press number keys on the keyboard. The component manages its own state through React’s `setState` and listens for global `keypress` events via `window.addEventListener`. It renders the keypad using React’s `createClass` and `ReactDOM.render`, with CSS transitions for button hover and active states. The code does not process or validate the entered sequence beyond concatenating and deleting digits.
This example demonstrates a minimalist web page that pairs a red HTML block with a JavaScript-based memory system. The visualization shows how a custom `memory` object stores and retrieves key-value pairs, simulating a limited cache that forgets the oldest entries after 250 saves. The code uses plain JavaScript with no external libraries, relying on standard object properties and array methods like `shift()` and `push()` to manage memory. The page renders via a simple `index.html` file that loads `test.js`, which logs the stored data to the console. No charting or data-rendering APIs appear in the code.