Index - Web APIs
1410 fontfacesetloadevent api, cssfontloading, event, experimental, fontfaceloadevent, fonts, interface, reference the fontfacesetloadevent interface of the the css font loading api is fired whenever a fontfaceset loads.
... 1411 fontfacesetloadevent.fontfacesetloadevent() api, cssfontloading, constructor, experimental, fontfaceloadevent, fonts, reference the fontfacesetloadevent constructor creates a new fontfaceloadevent object which is fired whenever a fontfaceset loads.
... 1412 fontfacesetloadevent.fontfaces api, cssfontloading, experimental, fontfaceloadevent, fonts, property, reference, fontfaces the fontfaces read-only property of the fontfaceloadeventinit interface returns an array of fontface instances, each of which represents a single usable font.

Event - Web APIs
animationevent audioprocessingevent beforeinputevent beforeunloadevent blobevent clipboardevent closeevent compositionevent cssfontfaceloadevent customevent devicelightevent devicemotionevent deviceorientationevent deviceproximityevent domtransactionevent dragevent editingbeforeinputevent errorevent fetchevent focusevent gamepadevent hashchangeevent idbversionchangeevent inputevent keyboardevent mediastreamevent messageevent mouseevent mutationevent offlineaudiocompletionevent overconstrainederror pagetransitioneven...

FontFaceSetLoadEvent.FontFaceSetLoadEvent() - Web APIs
the fontfacesetloadevent constructor creates a new fontfaceloadevent object which is fired whenever a fontfaceset loads.

FontFaceSetLoadEvent.fontfaces - Web APIs
the fontfaces read-only property of the fontfaceloadeventinit interface returns an array of fontface instances, each of which represents a single usable font.