SpeechGrammarList: addFromString() method

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

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