AudioNode.numberOfOutputs

The numberOfOutputs property of the AudioNode interface returns the number of outputs coming out of the node. Destination nodes — like AudioDestinationNode — have a value of 0 for this attribute.

Syntax

var oscillator = audioCtx.createOscillator();
var outputs = oscillator.numberOfOutputs;

Value

An integer.

Example

var AudioContext = window.AudioContext || window.webkitAudioContext;
var audioCtx = new AudioContext();
var oscillator = audioCtx.createOscillator();
var gainNode = audioCtx.createGain();
oscillator.connect(gainNode);
gainNode.connect(audioCtx.destination);
var outputs = oscillator.numberOfOutputs;

Specifications

Specification Status Comment
Web Audio API
The definition of 'numberOfOutputs' in that specification.		 Working Draft  

Browser compatibility

Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 10.0webkit (Yes) 25.0 (25.0) No support 15.0webkit
22 (unprefixed)		 (Yes)
Feature Android Edge Firefox Mobile (Gecko) Firefox OS (Gecko) IE Phone Opera Mobile Safari Mobile
Basic support ? (Yes) 26.0 1.2 ? ? ?

See also

Document Tags and Contributors

Tags: 
 Contributors to this page: erikadoyle, fscholz, chrisdavidmills
 Last updated by: erikadoyle,