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
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
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
AudioNode.numberOfOutputs by Mozilla Contributors is licensed under CC-BY-SA 2.5.