Answers for "play audio once javascript"

play sound javascript

var audio = new Audio("folder_name/audio_file.mp3");
audio.play();

how to play audio in javascript

var audio = new Audio("folder_name/audio_file.mp3");
audio.play();			// start playing audio
audio.pause();			// pause audio
audio.currentTime = 0;	// makes sure audio is played from the beginning when resumed