Limited availability
The SpeechRecognitionResult interface of the Web Speech API represents a single recognition match, which may contain multiple SpeechRecognitionAlternative objects.
SpeechRecognitionResult.isFinal Read only
A boolean value that states whether this result is final (true) or not (false) â if so, then this is the final time this result will be returned; if not, then this result is an interim result, and may be updated later on.
SpeechRecognitionResult.length Read only
Returns the length of the "array" â the number of SpeechRecognitionAlternative objects contained in the result (also referred to as "n-best alternatives".)
SpeechRecognitionResult.item
A standard getter that allows SpeechRecognitionAlternative objects within the result to be accessed via array syntax.
This code is excerpted from our Speech color changer example.
recognition.onresult = (event) => {
// The SpeechRecognitionEvent results property returns a SpeechRecognitionResultList object
// The SpeechRecognitionResultList object contains SpeechRecognitionResult objects.
// It has a getter so it can be accessed like an array
// The first [0] returns the SpeechRecognitionResult at position 0.
// Each SpeechRecognitionResult object contains SpeechRecognitionAlternative objects
// that contain individual results.
// These also have getters so they can be accessed like arrays.
// The second [0] returns the SpeechRecognitionAlternative at position 0.
// We then return the transcript property of the SpeechRecognitionAlternative object
const color = event.results[0][0].transcript;
diagnostic.textContent = `Result received: ${color}.`;
bg.style.backgroundColor = color;
};
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