Compare ISO 8601 periods in JavaScript

Question

I am trying to compare ISO 8601 periods in JavaScript to see which period has a greater duration than the other. For example: P6M (6 months) is greater than PT10M (10 minutes).

I can't find anything out of the box which helps, perhaps you guys can help me achieve this.

Answer 1

There's nothing available OOTB using the native javascript Date object but Moment.js handles your ISO8601 durations just fine (and there's little point re-inventing the wheel here...)

eg the following demo prints: "6 months is greater than 10 minutes"

var d1 = moment.duration('P6M'),
    d2 = moment.duration('PT10M');

console.log(
    d1.humanize()
  + ( d1 < d2 ? ' is less than ' : ' is greater than ' )
  + d2.humanize()
);