SpeechSynthesisEvent.elapsedTime
This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.
The elapsedTime
read-only property of the SpeechSynthesisUtterance
interface returns the elapsed time in milliseconds after the SpeechSynthesisUtterance.text
started being spoken that the event was triggered at.
Syntax
JavaScript
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event.elapsedTime;
Value
A float.
Examples
JavaScript
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utterThis.onboundary = function(event) { console.log(event.name + ' boundary reached after ' + event.elapsedTime + ' milliseconds.'); }
Specifications
Specification | Status | Comment |
---|---|---|
Web Speech API The definition of 'elapsedTime' in that specification. |
Draft |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari (WebKit) |
---|---|---|---|---|---|
Basic support | 33 | 49 (49) | No support | ? | 7 |
Feature | Android | Chrome | Firefox Mobile (Gecko) | Firefox OS | IE Phone | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | (Yes) | (Yes) | No support | 2.0 | No support | No support | 7.1 |
See also
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/speechsynthesisevent/elapsedtime