SpeechGrammarList: addFromString() method
Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The addFromString()
method of the
SpeechGrammarList
interface takes a grammar present in a specific
string within the code base (e.g. stored in a variable) and adds it to
the SpeechGrammarList
as a new SpeechGrammar
object.
Syntax
js
addFromString(string)
addFromString(string, weight)
Parameters
string
-
A string representing the grammar to be added.
weight
Optional-
A float representing the weight of the grammar relative to other grammars present in the
SpeechGrammarList
. The weight means the importance of this grammar, or the likelihood that it will be recognized by the speech recognition service. The value can be between0.0
and1.0
; If not specified, the default used is1.0
.
Return value
None (undefined
).
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-speechgrammarlist-addfromstring |
Browser compatibility
BCD tables only load in the browser