active-element.md

layout	tags
doc-api.html	argument-list, shadow-dom

ally.is.activeElement

Determines if an element is the activeElement of its host context, i.e. its document, iFrame or ShadowHost.

Description

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.

Examples

Changes

• Added in v1.1.0.

Notes

Related resources

Contributing

• module source
• document source
• unit test