optional4() — svelte Function Reference

Architecture documentation for the optional4() function in actions.ts from the svelte codebase.

Function typescript BuildSystem QualityControl

Entity Profile

BuildSystem→ QualityControl→ optional4() — svelte Function Reference

Dependency Diagram

graph TD
  6ca10cbc_9366_3f88_810e_eb551f97898a["optional4()"]
  c7d7d650_9ce5_9889_19ef_b2856517b577["actions.ts"]
  6ca10cbc_9366_3f88_810e_eb551f97898a -->|defined in| c7d7d650_9ce5_9889_19ef_b2856517b577
  style 6ca10cbc_9366_3f88_810e_eb551f97898a fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/tests/types/actions.ts lines 59–65

const optional4: Action<HTMLElement, boolean | undefined> = (_node, _param?) => {
	return {
		// @ts-expect-error comparison always resolves to false
		update: (p) => p === 'd',
		destroy: () => {}
	};
};