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This example demonstrates a minimal "Hello World" visualization built for the VizHub V3 Runtime Environment, where a single line of text is rendered at a large font size and centered within the container. The code exports a `main` function that receives a container DIV and directly sets its inner HTML with an inline-styled div, using the container's dimensions to determine layout. There is no interactive behavior or external data source, serving as a blank slate for understanding the runtime's hot-reloading and state management capabilities.
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.