text: /* https://stackoverflow.com/a/6109105 */
  export default function nicetime(current, previous) {
  
    var msPerMinute = 60 * 1000;
    var msPerHour = msPerMinute * 60;
    var msPerDay = msPerHour * 24;
    var msPerMonth = msPerDay * 30;
    var msPerYear = msPerDay * 365;
  
    var elapsed = current - previous;
  
    if (elapsed < msPerMinute) {
      return Math.round(elapsed / 1000) + ' seconds ago';
    }
  
    else if (elapsed < msPerHour) {
      return Math.round(elapsed / msPerMinute) + ' minutes ago';
    }
  
    else if (elapsed < msPerDay) {
      return Math.round(elapsed / msPerHour) + ' hours ago';
    }
  
    else if (elapsed < msPerMonth) {
      return Math.round(elapsed / msPerDay) + ' days ago';
    }
  
    else if (elapsed < msPerYear) {
      return Math.round(elapsed / msPerMonth) + ' months ago';
    }
  
    else {
      return Math.round(elapsed / msPerYear) + ' years ago';
    }
  }