SpeechSynthesisEvent: charIndex property

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The charIndex read-only property of the SpeechSynthesisUtterance interface returns the index position of the character in SpeechSynthesisUtterance.text that was being spoken when the event was triggered.

Value

A number.

Examples

utterThis.onpause = (event) => {
 const char = event.utterance.text.charAt(event.charIndex);
 console.log(
 `Speech paused at character ${event.charIndex} of "${event.utterance.text}", which is "${char}".`,
 );
};