SpeechGrammarList: length property
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The length
read-only property of the
SpeechGrammarList
interface returns the number of
SpeechGrammar
objects contained in the SpeechGrammarList
.
Value
A number indicating the number of SpeechGrammar
objects contained in the
SpeechGrammarList
.
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;
speechRecognitionList.length; // should return 1.
Specifications
Specification |
---|
Web Speech API # dom-speechgrammarlist-length |
Browser compatibility
BCD tables only load in the browser