How to play a notification sound on websites?

Question

When a certain event occurs, I want my website to play a short notification sound to the user. The sound should not auto-start (instantly) when the website is opened. Instead, it should be played on demand via JavaScript (when that certain event occurs). It is important that this also works on older browsers (IE6 and such). So, basically there are two questions: What codec should I use? What's best practice to embed the audio file? ( vs. vs. Flash vs. ) JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

2021 solution function playSound(url) { const audio = new Audio(url); audio.play(); } Play Browser support Edge 12+, Firefox 20+, Internet Explorer 9+, Opera 15+, Safari 4+, Chrome Codecs Support Just use MP3 Old solution (for legacy browsers) function playSound(filename){ var mp3Source = ''; var oggSource = ''; var embedSource = ''; document.getElementById("sound").innerHTML='' + mp3Source + oggSource + embedSource + ''; } Play

Browser support (Modern browsers) (Fallback) Codes used MP3 for Chrome, Safari and Internet Explorer. OGG for Firefox and Opera.