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SpeechSynthesis.pending

This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The pending read-only property of the SpeechSynthesis interface is a Boolean that returns true if the utterance queue contains as-yet-unspoken utterances.

Syntax

var amIPending = speechSynthesisInstance.pending;

Value

A Boolean.

Examples

var synth = window.speechSynthesis;

var utterance1 = new SpeechSynthesisUtterance('How about we say this now? This is quite a long sentence to say.');
var utterance2 = new SpeechSynthesisUtterance('We should say another sentence too, just to be on the safe side.');

synth.speak(utterance1);
synth.speak(utterance2);

var amIPending = synth.pending; // will return true if utterance 1 is still being spoken and utterance 2 is in the queue

Specifications

Browser compatibilityUpdate compatibility data on GitHub

Desktop
Chrome Edge Firefox Internet Explorer Opera Safari
Basic support 33 Yes 49 No 21 7
Mobile
Android webview Chrome for Android Edge Mobile Firefox for Android Opera for Android iOS Safari Samsung Internet
Basic support 4.4.3 33 Yes 62
62
61 — 62
Disabled
Disabled From version 61 until version 62 (exclusive): this feature is behind the media.webspeech.synth.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
No 7.1 ?

See also

© 2005–2018 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/SpeechSynthesis/pending