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
BCD tables only load in the browser