Baseline Widely available
The read-only charLength
property of the SpeechSynthesisEvent
interface returns the number of characters left to be spoken after the character at the charIndex
position.
If the speech engine can't determine it, it returns 0.
ValueAn integer.
ExamplesutterThis.onpause = (event) => {
const char = event.utterance.text.charAt(event.charIndex);
const charLeft = event.charLength;
if (charLeft) {
console.log(
`Speech paused. There are still ${charLeft} characters to be spoken.`,
);
} else {
console.log(
"Speech paused. The underlying speech engine can't tell how many characters are left.",
);
}
};
Specifications Browser compatibility
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HTML:
3.2
| Encoding:
UTF-8
| Version:
0.7.3