class js.html.FontFaceSet extends EventTarget

var length:Int

var onloading:Function

var onloadingdone:Function

var onloadingerror:Function

var ready:Promise<Void>

var status:FontFaceSetLoadStatus

function add(font:FontFace):Void

function clear():Void

function delete_(font:FontFace):Bool

function has(font:FontFace):Bool

function load(font:String, ?text:String = &quot; &quot;):Promise<Array<FontFace>>