Get a humanized, "Morning", "Afternoon", "Evening" from moment.js **Great for user greetings!** (ES6)

momentjs.humanized.triplesplit.time.js

getGreetingTime = (currentTime, user = null) => {
  if (!currentTime || !currentTime.isValid()) { return `Hello ${user ? ` ${user}` : ''}`; }

  const splitAfternoon = 12; // 24hr time to split the afternoon
  const splitEvening = 17; // 24hr time to split the evening
  const currentHour = parseFloat(currentTime.format('HH'));
  let greetingText = 'Good morning'; // Between dawn and noon

  if (currentHour >= splitAfternoon && currentHour <= splitEvening) {
    // Between 12 PM and 5PM
    greetingText = 'Good afternoon';
  } else if (currentHour >= splitEvening) {
    // Between 5PM and Midnight
    greetingText = 'Good evening';
  }
  
  return `${greetingText}${user ? `, ${user}` : ''}`;
}

/* USE
    //The var "humanizedGreeting" below will equal (assuming the time is 8pm) "Good evening, James."
    
    var user = "James";
    var humanizedGreeting = getGreetingTime(moment(), user);
*/

Inspired by :

• https://gist.github.com/James1x0/8443042
• https://gist.github.com/AllanPooley/c41f2e4a0e63e3eaf89b57f2570fcb55

New code :

const currentHour = new Date().getHours();

const greetingMessage =
  currentHour >= 4 && currentHour < 12 ? // after 4:00AM and before 12:00PM
  'Good morning.' :
  currentHour >= 12 && currentHour <= 17 ? // after 12:00PM and before 6:00pm
  'Good afternoon.' :
  currentHour > 17 || currentHour < 4 ? // after 5:59pm or before 4:00AM (to accommodate night owls)
  'Good evening.' : // if for some reason the calculation didn't work
  'Welcome'

console.log(greetingMessage)

Will test it later