The error
event of the Web Speech API SpeechSynthesisUtterance
object is fired when an error occurs that prevents the utterance from being successfully spoken.
The error
event of the Web Speech API SpeechSynthesisUtterance
object is fired when an error occurs that prevents the utterance from being successfully spoken.
Use the event name in methods like addEventListener()
, or set an event handler property.
js
addEventListener("error", (event) => {}); onerror = (event) => {};
A SpeechSynthesisErrorEvent
. Inherits from SpeechSynthesisEvent
and Event
.
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.
error
Read only
Returns an error code indicating what has gone wrong with a speech synthesis attempt.
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 a mark
event, or the type of boundary reached in the case of a boundary
event.
utterance
Read only
Returns the SpeechSynthesisUtterance
instance that the event was triggered on.
You can use the error
event in an addEventListener
method:
js
utterThis.addEventListener("error", (event) => { console.log( `An error has occurred with the speech synthesis: ${event.error}`, ); });
Or use the onerror
event handler property:
js
utterThis.onerror = (event) => { console.log( `An error has occurred with the speech synthesis: ${event.error}`, ); };
Specification |
---|
Web Speech API # eventdef-speechsynthesisutterance-error |
Web Speech API # dom-speechsynthesisutterance-onerror |
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
error_event |
33 | 14 | 49 | No | 21 | 7 | No | 33 | 62 | No | 7 | 3.0 |
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https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesisUtterance/error_event