HW
This example demonstrates the minimal "Hello World" template for the VizHub V3 runtime environment, displaying the text at a fixed font size of 242 pixels. It shows how the exported `main` function receives a container element and uses its dimensions to render content, while the empty state object and `setState` function enable future interactive updates. The code uses plain HTML and inline styles via template literals, with no external libraries. The example highlights the hot-reloading workflow where changes to the `fontSize` variable are reflected live in the browser.
AI-generated descriptionA 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
mainfunction exported fromindex.js - The
mainfunction takes an argumentcontainer, a DIV that has measurable dimensions usingclientWidthandclientHeight - The second argument to
mainis an options object containingstateandsetState. - The state of the application is stored in
state, which is initialized as an empty object{}. - The
setStatefunction 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.