effect_in_unowned_derived() — svelte Function Reference

Architecture documentation for the effect_in_unowned_derived() function in errors.js from the svelte codebase.

Function javascript ClientRuntime Hydration called by 1

Entity Profile

ClientRuntime→ Hydration→ effect_in_unowned_derived() — svelte Function Reference

Dependency Diagram

graph TD
  58e66500_81dd_0095_3948_11e3dc2886a8["effect_in_unowned_derived()"]
  ff387d97_d6d2_81e0_e731_656552709d27["errors.js"]
  58e66500_81dd_0095_3948_11e3dc2886a8 -->|defined in| ff387d97_d6d2_81e0_e731_656552709d27
  b78cad2e_34cc_9fa8_80d7_78a1f69d3539["validate_effect()"]
  b78cad2e_34cc_9fa8_80d7_78a1f69d3539 -->|calls| 58e66500_81dd_0095_3948_11e3dc2886a8
  style 58e66500_81dd_0095_3948_11e3dc2886a8 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

packages/svelte/src/internal/client/errors.js lines 171–181

export function effect_in_unowned_derived() {
	if (DEV) {
		const error = new Error(`effect_in_unowned_derived\nEffect cannot be created inside a \`$derived\` value that was not itself created inside an effect\nhttps://svelte.dev/e/effect_in_unowned_derived`);

		error.name = 'Svelte error';

		throw error;
	} else {
		throw new Error(`https://svelte.dev/e/effect_in_unowned_derived`);
	}
}