SpeechSynthesisEvent: elapsedTime property
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2018.
The elapsedTime
read-only property of the SpeechSynthesisEvent
returns the elapsed time in seconds, after the SpeechSynthesisUtterance.text
started being spoken, at which the event was triggered.
Value
A float containing the elapsed time, in seconds.
Note: Early versions of the specification required the elapsed time in milliseconds. Check the compatibility table below for your browser.
Examples
js
utterThis.onboundary = (event) => {
console.log(
`${event.name} boundary reached after ${event.elapsedTime} seconds.`,
);
};
Specifications
Specification |
---|
Web Speech API # dom-speechsynthesisevent-elapsedtime |
Browser compatibility
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
elapsedTime | ||||||||||||
elapsedTime in milliseconds |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Non-standard. Check cross-browser support before using.
- Deprecated. Not for use in new websites.
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.