Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The XRInputSourceArray interface's entries() method returns a JavaScript iterator which can then be used to iterate over the key/value pairs in the input source array. Each item in the array is an XRInputSource object.

Most frequently, you will use this in tandem with statements such as for...of.


let inputSourceIterator = xrInputSourceArray.entries();

for (let entry of xrInputSourceArray.entries()) {
  /* ... */



Return value

An iterator which can be used to walk through the list of XRInputSource objects included in the input source array.


This example snippet gets the list of inputs for a session and tries to handle each type of input device it supports using.

let sources = xrSession.inputSources;

for (let input of sources.entries()) {
  if (input.gamepad) {
  } else {
    if (input.targetRayMode === "tracked-pointer" &&
        input.handedness === player.handedness) {
      /* Handle main hand controller */
    } else {
      /* Handle other inputs */

For each input in the llist, gamepad inputs are dispatched to a checkGamepad() with the input's Gamepad object, taken from its gamepad property, as an input

For other devices, we look for tracked-pointer devices in the player's main hand, dispatching those to a handleMainHandInput() method.


Specification Status Comment
WebXR Device API
The definition of 'XRInputSourceArray' in that specification.
Working Draft XRInputSourceArray interface

[1] See Iterator-like methods in Information contained in a WebIDL file for information on how an iterable declaration in an interface definition causes entries(), forEach(), keys(), and values() methods to be exposed from objects that implement the interface.

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
entries()Chrome Full support 79Edge Full support 79Firefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android Full support 79Firefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android Full support 11.2


Full support  
Full support
No support  
No support