The mark
event of the Web Speech API SpeechSynthesisUtterance
object is fired when the spoken utterance reaches a named SSML "mark" tag.
SpeechSynthesisUtterance: mark event
Syntax
Use the event name in methods like addEventListener()
, or set an event handler property.
addEventListener('mark', event => { }) onmark = event => { }
Event type
A SpeechSynthesisEvent
. Inherits from Event
.
Event properties
In addition to the properties listed below, properties from the parent interface, Event
, are available.
-
charIndex
Read only -
Returns the index position of the character in the
SpeechSynthesisUtterance.text
that was being spoken when the event was triggered. -
elapsedTime
Read only -
Returns the elapsed time in seconds after the
SpeechSynthesisUtterance.text
started being spoken that the event was triggered at. -
name
Read only -
Returns the name associated with certain types of events occurring as the
SpeechSynthesisUtterance.text
is being spoken: the name of the SSML marker reached in the case of amark
event, or the type of boundary reached in the case of aboundary
event. -
utterance
Read only -
Returns the
SpeechSynthesisUtterance
instance that the event was triggered on.
Examples
You can use the mark
event in an addEventListener
method:
utterThis.addEventListener('mark', function(event) { console.log('A mark was reached: ' + event.name); });
Or use the onmark
event handler property:
utterThis.onmark = function(event) { console.log('A mark was reached: ' + event.name); }
Specifications
Specification |
---|
Web Speech API # eventdef-speechsynthesisutterance-mark |
Web Speech API # dom-speechsynthesisutterance-onmark |
Browser compatibility
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
mark_event |
33
|
14
|
49
|
No
|
21
|
7
|
No
|
33
|
62
|
No
|
7
|
3.0
|
See also
© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance/mark_event