SpeechGrammarList: addFromString() method

Deprecated

Avoid using this feature in new projects. Advancements in speech recognition mean that speech grammars are not needed to achieve low error rates. This feature may be a candidate for removal from web standards or browsers.

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 between 0.0 and 1.0; If not specified, the default used is 1.0.

Return value

None (undefined).

Specifications

Specification
Web Speech API
# dom-speechgrammarlist-addfromstring

Browser compatibility

See also