yonatansnir

class ObjectId {
  constructor(id){
    if (id)
      this._id = id;
    else
      this._id = this.generateObjectId();
  }

  createdTime(){
    let hexTimestamp = this._id.substring(0, 8)

yonatansnir

Falsehoods programmers believe about time

This is a compiled list of falsehoods programmers tend to believe about working with time.

Don't re-invent a date time library yourself. If you think you understand everything about time, you're probably doing it wrong.

Falsehoods

• There are always 24 hours in a day.
• February is always 28 days long.
• Any 24-hour period will always begin and end in the same day (or week, or month).

yonatansnir

function minutesBetween(date1, date2){
  const minuteInMs = 1000*60;
  let diffInMs = Math.abs(date1.getTime() - date2.getTime());
  let result = diffInMs / minuteInMs;
  return Math.floor(result);
}

yonatansnir

function daysBetween(date1, date2){
  const oneDayInMs = 1000*60*60*24;
  let diffInMs = Math.abs(date1.getTime() - date2.getTime())
  let result = diffInMs / oneDayInMs;
  return Math.floor(result);
}