The transcript read-only property of the SpeechRecognitionResult interface returns a string containing the transcript of the recognized word(s).
For continuous recognition, leading or trailing whitespace will be included where necessary so that concatenation of consecutive SpeechRecognitionResults produces a proper transcript of the session.
A string.
This code is excerpted from our Speech color changer example.
recognition.onresult = (event) => {
const color = event.results[0][0].transcript;
diagnostic.textContent = `Result received: ${color}.`;
bg.style.backgroundColor = color;
};