SpeechRecognitionEvent: resultIndex property

{{APIRef("Web Speech API")}}

The resultIndex read-only property of the {{domxref("SpeechRecognitionEvent")}} interface returns the lowest index value result in the {{domxref("SpeechRecognitionResultList")}} "array" that has actually changed.

The {{domxref("SpeechRecognitionResultList")}} object is not an array, but it has a getter that allows it to be accessed by array syntax.

Value

A number.

Examples

recognition.onresult = (event) => {
  const color = event.results[0][0].transcript;
  diagnostic.textContent = `Result received: ${color}.`;
  bg.style.backgroundColor = color;
  console.log(event.resultIndex); // returns 0 if there is only one result
};

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• Web Speech API