SpeechRecognition: grammars property

The grammars property of the SpeechRecognition interface returns and sets a collection of SpeechGrammar objects that represent the grammars that will be understood by the current SpeechRecognition.

Note: The whole concept of grammar has been removed from the Web Speech API. Related features have been kept in the specification and are still recognized by supporting browsers for backwards compatibility purposes, but they have no effect on speech recognition services.

Value

A SpeechGrammarList containing the SpeechGrammar objects representing the grammar for your app.

Examples

js
const 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 ;";
const recognition = new SpeechRecognition();
const speechRecognitionList = new SpeechGrammarList();
speechRecognitionList.addFromString(grammar, 1);
recognition.grammars = speechRecognitionList;

// …

Specifications

Specification
Web Speech API
# dom-speechrecognition-grammars

Browser compatibility

See also