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Fork of Blank Slate with Hot Reloading

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Ssirusxcoder
Last edited Mar 10, 2024
Created on Mar 10, 2024

This example demonstrates the minimal setup for a VizHub V3 visualization, showing a static "Hello World!" message rendered inside a container DIV. It highlights the runtime’s hot reloading capability, where changes to the `fontSize` variable are reflected instantly without a full page refresh. The `main` function receives the `container` and uses its `clientWidth` and `clientHeight` for layout, while storing application state in an empty object and updating it via `setState` with immutable patterns. No external libraries are used, relying on plain JavaScript and inline HTML strings for rendering.

AI-generated description

A blank slate starting point showing the "Hello World" for the VizHub V3 Runtime Environment, which supports continuous hot reloading with interactive widgets.

  • There is no index.html - that's what triggers the V3 Runtime
  • The entry point is the main function exported from index.js
  • The main function takes an argument container, a DIV that has measurable dimensions using clientWidth and clientHeight
  • The second argument to main is an options object containing state and setState.
  • The state of the application is stored in state, which is initialized as an empty object {}.
  • The setState function can be called with a function that uses the previous state to create a new state object using immutable update patterns.
  • For an interactive example, see Mouse Follower.

Full course playlist: YouTube: Constructing Visualization 2024.

MIT Licensed

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