Definition
Web Speech API defines SpeechRecognitionPhraseList
// The object representing a list of phrases for contextual biasing.
[Exposed=Window]
interface SpeechRecognitionPhraseList {
constructor(sequence<SpeechRecognitionPhrase> phrases);
readonly attribute unsigned long length;
SpeechRecognitionPhrase item(unsigned long index);
undefined addItem(SpeechRecognitionPhrase item);
undefined removeItem(unsigned long index);
};