The interface XRInputSourceArray
represents a live list of WebXR input sources, and is used as the return value of the XRSession
property inputSources
. Each entry is an XRInputSource
representing one input device connected to the WebXR system.
In addition to being able to access the input sources in the list using standard array notation (that is, with index numbers inside square brackets), methods are available to allow the use of iterators and the forEach()
method is also available.
The following properties are available on XRInputSourceArray
objects.
-
length
Read only Experimental
-
The number of XRInputSource
objects in the list.
The following methods are available on XRInputSourceArray
objects. You may also use the features of the Symbol
type.
-
entries()
Experimental
-
Returns an iterator
you can use to walk the list of key/value pairs in the list. Each item returned is an array whose first value is the index and whose second value is the XRInputSource
at that index.
-
forEach()
Experimental
-
Iterates over each item in the list, in order from first to last.
-
keys()
Experimental
-
A list of the keys corresponding to the entries in the input source list.
-
values()
Experimental
-
Returns an iterator
you can use to go through all the values in the list. Each item is a single XRInputSource
object.
In addition to these methods, you may use array notation to access items in the list by index For example, the snippet of code below calls a function handleInput()
, passing into it the first item in the input source list, if the list isn't empty.
let sources = xrSession.inputSources;
if (sources.length > 0) {
handleInput(sources[0]);
}