(Sort of) busy wait workaround for SpeechSynthesisUtterance.onend bug

(Sort of) busy wait workaround for SpeechSynthesisUtterance.onend bug.markdown

(Sort of) busy wait workaround for SpeechSynthesisUtterance.onend bug

A Pen by Massimo Santini on CodePen.

License.

index.html

<button onclick="doit()">Greet…</button>

script.js

function speak( text, onend ) {
  window.speechSynthesis.cancel();
  var ssu = new SpeechSynthesisUtterance( text );
  window.speechSynthesis.speak( ssu );
  function _wait() {
    if ( ! window.speechSynthesis.speaking ) {
      onend();
      return;
    }
    window.setTimeout( _wait, 200 );
  }
  _wait();
}

function doit() {
  speak( 'Hello, world!', function() { alert( 'done' ); } );
}