SpeechRecognitionResult: length property
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
The length read-only property of the
SpeechRecognitionResult interface returns the length of the "array"
— the number of SpeechRecognitionAlternative objects contained
in the result (also referred to as "n-best alternatives".)
The number of alternatives contained in the result depends on what the
SpeechRecognition.maxAlternatives property was set to when the speech
recognition was first initiated.
Value
A number.
Examples
This code is excerpted from our Speech color changer example.
js
recognition.onresult = (event) => {
const color = event.results[0][0].transcript;
diagnostic.textContent = `Result received: ${color}.`;
bg.style.backgroundColor = color;
console.log(event.results[0].length);
};
Specifications
| Specification |
|---|
| Web Speech API # dom-speechrecognitionresult-length |
Browser compatibility
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Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support