Function createWorker

createWorker(
canvas?: HTMLCanvasElement | null,
options?: WorkerCreateOptions,
): WorkerKonfetiInstance
Create Worker Instance. Simulation and drawing move to a Web Worker (the canvas becomes an OffscreenCanvas), so confetti stays smooth while the page is busy. Falls back to the main thread when OffscreenCanvas is unsupported. Options must be worker-safe: no hooks, easing functions, Path2D, DOM images or defineShape / definePhysics extensions (see WorkerFireOptions).
Parameters
- Optionalcanvas: HTMLCanvasElement | null
  Target Canvas (null or omitted creates a fullscreen overlay)
- Optionaloptions: WorkerCreateOptions
  Worker Instance Options
Returns WorkerKonfetiInstance
Worker Instance
Example
```
import { createWorker } from "konfeti/worker";

const stage = createWorker(document.querySelector("canvas"));
stage.fire({ particleCount: 400, spread: 360 });
stage.isWorker(); // true where OffscreenCanvas is supported
```
Remarks
Lives in its own entry (konfeti/worker), so apps that never render in a worker carry none of this code.
- Defined in api/createWorker.ts:25