requirebin sketch

requirebin sketch

This example demonstrates reactive state management in a React application by loading and observing a data package from a GitHub-hosted JSON file. It uses MobX to create an observable `package` property on a store, with an `observe` listener that logs changes to the console whenever the package is updated. The code loads dataset metadata via the `chi-datapackage` library, triggering the observer when the asynchronous load completes. The sketch shows how MobX tracks and reacts to state changes in a minimal data-loading workflow.

82% match

requirebin sketch

This example demonstrates how to load and manage a data package using the `chi-datapackage` library within a Vue application. It shows the flow of loading a remote dataset, dispatching actions, and updating application state through the `barracks` framework's model, effects, and reducers. The visualization is driven by `index.js`, which uses `dp.load` to fetch a JSON data package from GitHub, then triggers a `replacePackage` reducer to update the state. The code also logs state changes and actions via lifecycle hooks, illustrating a functional reactive pattern for handling data-driven charts.

63% match

requirebin sketch

This example demonstrates a minimal client-side application that loads a data package from a remote URL using the `chi-datapackage` library, then manages the resulting state through the `barracks` event-based architecture. The code shows a unidirectional data flow where a `loadPackage` effect triggers a `replacePackage` reducer to update the application state. It also logs actions and state changes for debugging. The visualization itself is not rendered in the provided files; instead, the focus is on the data-loading and state-management pipeline, with the package.json specifying the required dependencies for this workflow.

63% match

React, redux, Expect and Deep Freeze

This example demonstrates a pure function called `testFunction` that takes a state number and an action object, returning an updated number for increment, decrement, or unchanged states. The code uses the Expect library to assert five specific input-output pairs, validating correct logic for both counter operations and an unknown action type. After the assertions, it logs "tests passed!" to the console. The reducer pattern mirrors Redux’s action dispatch, though no UI or visualization is rendered—the focus is solely on unit-testing the state transition logic.

DDDDDDanica

63% match

requirebin sketch

This example uses the `typed-function` library to define a polymorphic `fib` function with custom types for zero and one, then logs the first 20 Fibonacci numbers. The code adds type tests for exact numeric values and dispatches based on argument type, demonstrating dynamic function overloading in JavaScript. The output is generated by the Node.js `console.log` call, producing the sequence in the browser console via RequireBin.

requirebin sketch

requirebin sketch

This example uses the typed-function library to define a recursive Fibonacci sequence generator, mapping numeric types `zero`, `one`, and `any` to specific function signatures. The code creates a `fib` function that dispatches based on argument type, then writes the first 20 Fibonacci numbers into the page body via `document.body.innerHTML`. The visualization is minimal, displaying the computed sequence as plain text. The sketch demonstrates typed function dispatch and recursion, with the source bundled through RequireBin and rendered directly in the browser.

Bats plus React useMemo

This example shows how React useMemo controls component re-rendering in a data visualization of bat icons moving across a screen. Six bat elements are rendered from an array of bat data objects, with each bat displaying its name and position. The app uses React's useState, useEffect, useRef, and useMemo hooks to isolate updates so only the bat whose data changes moves, while others remain static. A performance timer measures blocking computations from the intensive.js module, and the interface includes a table of bat data and a reset button. The visualization demonstrates that useMemo prevents unnecessary re-renders when dependencies remain unchanged.

Bbrandon flowers