# ally.is.activeElement
Determines if an element is the activeElement of its host context, i.e. its document, iFrame or ShadowHost.
# Usage
var element = document.getElementById('victim');
var isActiveElement = ally.is.activeElement(element);
# Arguments
| Name | Type | Default | Description |
|---|---|---|---|
| element | HTMLElement |
required | The Element to test. |
# Returns
Boolean, true if the element is the activeElement of its host context.
# Throws
TypeError if element argument is not of type HTMLElement.
# Changes
- Added in
v1.1.0.