fallback() — svelte Function Reference

Architecture documentation for the fallback() function in utils.js from the svelte codebase.

Function javascript SharedInternal BitFlags

Entity Profile

SharedInternal→ BitFlags→ fallback() — svelte Function Reference

Dependency Diagram

graph TD
  9df26367_fcfb_3368_0b50_144f4777eddd["fallback()"]
  cb946435_ce66_d1e8_6bee_287bdb07e7c5["utils.js"]
  9df26367_fcfb_3368_0b50_144f4777eddd -->|defined in| cb946435_ce66_d1e8_6bee_287bdb07e7c5
  style 9df26367_fcfb_3368_0b50_144f4777eddd fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/src/internal/shared/utils.js lines 78–84

export function fallback(value, fallback, lazy = false) {
	return value === undefined
		? lazy
			? /** @type {() => V} */ (fallback)()
			: /** @type {V} */ (fallback)
		: value;
}