@stemplayer-js/stemplayer-js/src/lib/format-seconds.js

A streaming, low latency Stem Player Web-Component

export default v => {
  const secNum = parseInt(v, 10);

  if (Number.isNaN(secNum)) return '';

  let hours = Math.floor(secNum / 3600);
  let minutes = Math.floor((secNum - hours * 3600) / 60);
  let seconds = secNum - hours * 3600 - minutes * 60;

  if (hours < 10) {
    hours = `0${hours}`;
  }
  if (minutes < 10) {
    minutes = `0${minutes}`;
  }
  if (seconds < 10) {
    seconds = `0${seconds}`;
  }
  // return hours+':'+minutes+':'+seconds;
  return `${minutes}:${seconds}`;
};