API Catalog

Visualize and analyze the API overlap between standards specifications and type systems within browsers.

Browser information was gathered by traversing the type system within the latest available version of the top browsers. Specification data was gathered by extracting Web IDL definitions from notable web specifications. Note that an API that is shown as detected does not necessarily mean it functions per specification; where the absence of an API under an interface could be due to the browser supporting an API in a different part of the prototype chain. This data is made publicly available to help each browser vendor work toward the goal of a more interoperable web platform. For more information, visit our FAQ page.

APIs by interface

API NameSpecificationsMicrosoft EdgeGoogle ChromeMozilla FirefoxApple Safari
XRCoordinateSystemEvent
@@toStringTag    
arguments    
caller    
constructor    
coordinateSystem    
length    
name    
prototype    
XRDevice
@@toStringTag   
arguments   
caller   
constructor    
external   
length    
name   
prototype    
requestSession   
supportsSession   
XRDevicePose
@@toStringTag   
arguments   
caller   
constructor    
getViewMatrix   
length    
name   
poseModelMatrix   
prototype    
XRFrameOfReference
@@toStringTag   
arguments   
bounds   
caller   
constructor    
emulatedHeight   
length    
name   
onboundschange    
prototype    
XRLayer
@@toStringTag   
arguments   
caller   
constructor    
length    
name   
prototype    
XRPresentationContext
@@toStringTag   
arguments   
caller   
canvas   
constructor    
length    
name   
prototype    
XRPresentationFrame
@@toStringTag   
arguments   
caller   
constructor    
getDevicePose   
length    
name   
prototype    
session    
views   
XRSession
@@toStringTag   
arguments   
baseLayer   
caller   
cancelAnimationFrame   
constructor    
depthFar   
depthNear   
device   
end   
exclusive   
length    
name   
onblur   
onend   
onfocus   
onresetpose   
outputContext   
prototype    
requestAnimationFrame   
requestFrameOfReference   
XRSessionEvent
@@toStringTag   
arguments   
caller   
constructor   
length   
name   
prototype   
session   
XRStageBounds
@@toStringTag   
arguments   
caller   
constructor    
geometry   
length    
name   
prototype