@microsoft/fast-foundation > composedContains
composedContains() function
Determines if the reference element contains the test element in a "composed" DOM tree that ignores shadow DOM boundaries.
Returns true of the test element is a descendent of the reference, or exist in a shadow DOM that is a logical descendent of the reference. Otherwise returns false.
Signature:export declare function composedContains(reference: HTMLElement, test: HTMLElement): boolean;
Parameters
| Parameter | Type | Description |
|---|---|---|
| reference | HTMLElement | The element to test for containment against. |
| test | HTMLElement | The element being tested for containment. |
boolean