Web Audio API | AudioNode numberOfOutputs property

The AudioNode.numberOfOutputs property is used to return the number of outputs which are coming from nodes. The value of destination node AudioDestinationNode is 0 for this attribute. Syntax:

var numOutputs = audioNode.numberOfOutputs;

Return Value: It returns an integer value greater than equal to zero. Example 1:

html

<!DOCTYPE HTML> 
<html> 

<head> 
    <title> 
        Web Audio API | AudioNode numberOfOutputs property
    </title>
</head> 

<body> 
    
    <h1 style = "color:green;" > 
        GeeksforGeeks
    </h1>
    
    <h2>
        AudioNode numberOfOutputs property
    </h2>
    
    <script>
    
        // Create new Audio context
        const audioContext = new AudioContext();
        
        // Create an OscillatorNode 
        const oscillator = audioContext.createOscillator();
        const gainNode = audioContext.createGain();
         
        oscillator.connect(gainNode).connect(audioContext.destination);
        
        // Display the numberOfOutputs in console view
        console.log(oscillator.numberOfOutputs);
    </script>
</body>

</html>

Output:

Example 2:

javascript

<!DOCTYPE HTML> 
<html> 
 
<head> 
    <title> 
        Web Audio API | AudioNode numberOfOutputs property
    </title>
</head> 
 
<body> 
     
    <h1 style = "color:green;" > 
        GeeksforGeeks
    </h1>
     
    <h2>
        AudioNode numberOfOutputs property
    </h2>
     
    <script>
     
        // Create new Audio context
        const audioContext = new AudioContext();
         
        // Create an OscillatorNode 
        const oscillator = audioContext.createOscillator();
        const gainNode = audioContext.createGain();
          
        oscillator.connect(gainNode).connect(audioContext.destination);
         
        // Display the numberOfOutputs in console view
        console.log(gainNode.numberOfOutputs);
    </script>
</body>
 
</html>

Output:

Example 3:

HTML

<!DOCTYPE HTML> 
<html> 

<head> 
    <title> 
        Web Audio API | AudioNode numberOfOutputs property
    </title>
</head> 

<body> 
    
    <h1 style = "color:green;" > 
        GeeksforGeeks
    </h1>
    
    <h2>
        AudioNode numberOfOutputs property
    </h2>
    
    <script>
    
        // Create new Audio context
        const audioContext = new AudioContext();
        
        // Create an OscillatorNode 
        const oscillator = audioContext.createOscillator();
        const gainNode = audioContext.createGain();
         
        oscillator.connect(gainNode).connect(audioContext.destination);
        
        // Display the numberOfOutputs in console view
        console.log(audioContext.destination.numberOfOutputs);
    </script>
</body>

</html>

Output:

Supported Browsers: The browser supported by AudioNode.numberOfOutputs property are listed below:

Google Chrome 14.0
Edge 12.0
Firefox 25.0
Safari 6.0
Opera 15.0

Web Audio API | AudioNode numberOfOutputs property

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