files/en-us/web/api/xrsession/enabledfeatures/index.md
{{APIRef("WebXR Device API")}}{{SeeCompatTable}}{{SecureContext_Header}}
The {{domxref("XRSession")}} interface's read-only enabledFeatures property returns an array of features enabled (granted) for an XRSession. This contains all requiredFeatures and a subset of optionalFeatures that have been requested with {{domxref("XRSystem.requestSession()")}}.
An {{jsxref("Array")}} of strings.
The {{domxref("XRSystem.requestSession()")}} method allows you to request XR session features. The features can be requested either as requiredFeatures (the XRSession must support the feature), or as optionalFeatures (the XRSession may support the feature). The enabledFeatures property identifies which features are actually available in the session.
navigator.xr
.requestSession("immersive-ar", {
requiredFeatures: ["local", "hit-test"],
optionalFeatures: ["anchors"],
})
.then((xrSession) => {
// Log enabledFeatures
console.log(xrSession.enabledFeatures);
// Check if anchors can be used
if (xrSession.enabledFeatures.includes("anchors")) {
// Go ahead and set up anchors
}
});
{{Specifications}}
{{Compat}}