This is an experimental technologyCheck the Browser compatibility table carefully before using this in production.
The optional weight
property of the SpeechGrammar
interface sets and returns the weight of the SpeechGrammar
object.
Syntax
var myGrammarWeight = speechGrammarInstance.weight;
Value
A float representing the weight of the grammar, in the range 0.0–1.0.
Examples
var grammar = '#JSGF V1.0; grammar colors; public <color> = aqua | azure | beige | bisque | black | blue | brown | chocolate | coral | crimson | cyan | fuchsia | ghostwhite | gold | goldenrod | gray | green | indigo | ivory | khaki | lavender | lime | linen | magenta | maroon | moccasin | navy | olive | orange | orchid | peru | pink | plum | purple | red | salmon | sienna | silver | snow | tan | teal | thistle | tomato | turquoise | violet | white | yellow ;'
var recognition = new SpeechRecognition();
var speechRecognitionList = new SpeechGrammarList();
speechRecognitionList.addFromString(grammar, 1);
recognition.grammars = speechRecognitionList;
console.log(speechRecognitionList[0].src); // should return the same as the contents of the grammar variable
console.log(speechRecognitionList[0].weight); // should return 1 - the same as the weight set in line 4.
Specifications
Specification | Status | Comment |
Web Speech APIThe definition of 'weight' in that specification. | Draft |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
Full support 25 |
Edge
Full support 79 |
Firefox Full support 44 Full support 44 Notes' Note that currently only the speech synthesis part is available in Firefox Desktop - the speech recognition part will be available soon, once the required internal permissions are sorted out.
Disabled' From version 44: this feature is behind the |
IE
No support No |
Opera
Full support 27 |
Safari
No support No |
WebView Android
No support No |
Chrome Android
Full support 64 |
Firefox Android
No support No |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
Full support 9.0 |
Legend
- Full support
- Full support
- No support
- No support
- Experimental. Expect behavior to change in the future.'
- Experimental. Expect behavior to change in the future.
- See implementation notes.'
- See implementation notes.
- User must explicitly enable this feature.'
- User must explicitly enable this feature.
See also
SpeechGrammar.weight by Mozilla Contributors is licensed under CC-BY-SA 2.5.