SpeechRecognitionResultList

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The SpeechRecognitionResultList interface of the Web Speech API represents a list of SpeechRecognitionResult objects, or a single one if results are being captured in continuous mode.

Properties

SpeechRecognitionResultList.length Read only

Returns the length of the "array" — the number of SpeechRecognitionResult objects in the list.

Methods

SpeechRecognitionResultList.item

A standard getter that allows SpeechRecognitionResult objects in the list to be accessed via array syntax.

Examples

This code is excerpted from our Speech color changer example.

recognition.onresult = function(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
  var color = event.results[0][0].transcript;
  diagnostic.textContent = 'Result received: ' + color + '.';
  bg.style.backgroundColor = color;
}

Specifications

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
SpeechRecognitionResultList
33
≤79
No
No
No
14.1
Yes
Yes
No
No
14.5
Yes
item
33
≤79
No
No
No
14.1
Yes
Yes
No
No
14.5
Yes
length
33
≤79
No
No
No
14.1
Yes
Yes
No
No
14.5
Yes

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognitionResultList