JSFiddle - React, Tailwind, and code Playground
JavaScript
function num2mmss(min) {
var SECONDS = min*60;
if (SECONDS >= 3600) {
return new Date(SECONDS * 1000).toISOString().substr(11, 8);
}
return new Date(SECONDS * 1000).toISOString().substr(14, 5);
}
alert(num2mmss(5-0.32))