AudioNode: numberOfInputs property

Baseline Widely available

This feature is well established and works across many devices and browser versions. It’s been available across browsers since ⁨July 2015⁩.

The numberOfInputs property of the AudioNode interface returns the number of inputs feeding the node. Source nodes are defined as nodes having a numberOfInputs property with a value of 0.

Value

An integer ≥ 0.

Examples

js
const audioCtx = new AudioContext(); const oscillator = audioCtx.createOscillator(); const gainNode = audioCtx.createGain(); oscillator.connect(gainNode).connect(audioCtx.destination); console.log(oscillator.numberOfInputs); // 0 console.log(gainNode.numberOfInputs); // 1 console.log(audioCtx.destination.numberOfInputs); // 1 

Specifications

Specification
Web Audio API
# dom-audionode-numberofinputs

Browser compatibility

See also