Call a function

[bknill]

Any clues how to call a function?

I'm trying something like this

const commandFunction = () => {console.log('command')}

    const command={
      command:text,
      type: 'function',
      function : commandFunction,
    }

        <Entity
          voice-command={command}
          position-curved-images={positionCurvedImage}
          primitive='a-curvedimage'
          {...geometry}
          className='clickable'
          {...{events}}
        >
        </Entity>

But get this error: Cannot read property 'executeCommand' of undefined

Uncaught TypeError: Cannot read property 'executeCommand' of undefined
at Object. (index.js:94)
at annyang.min.js:8
at Array.forEach ()
at u (annyang.min.js:8)
at z (annyang.min.js:8)
at SpeechRecognition.e.onresult