Web/API/AudioNode/numberOfOutputs

From Get docs


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 numOutputs = audioNode.numberOfOutputs;

Value

An integer ≥ 0.

Example

const audioCtx = new AudioContext();

const oscillator = audioCtx.createOscillator();
const gainNode = audioCtx.createGain();

oscillator.connect(gainNode).connect(audioCtx.destination);

console.log(oscillator.numberOfOutputs); // 1
console.log(gainNode.numberOfOutputs); // 1
console.log(audioCtx.destination.numberOfOutputs); // 0

Specifications

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

Browser compatibility

Update compatibility data on GitHub

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
numberOfOutputs Chrome

Full support 14

Edge

Full support 12

Firefox

Full support 25

IE

No support No

Opera

Full support 15

Safari

Full support 6

WebView Android

Full support Yes

Chrome Android

Full support 18

Firefox Android

Full support 26

Opera Android

Full support 14

Safari iOS

Full support Yes

Samsung Internet Android

Full support 1.0

Legend

Full support  
Full support
No support  
No support


See also