Transform seconds into an ISO 8601 duration using JavaScript

Question

Transform seconds into an ISO 8601 duration using JavaScript

Dealing with ISO 8601 durations can be quite tricky.

Efficiently converting seconds to durations is my current challenge, especially in JavaScript.

Stay tuned for my solution and the Jest test script coming up next.

javascript duration seconds

Answer 1

Answer №1

Converting Seconds to Duration

export const SECONDS_PER_SECOND = 1;
export const SECONDS_PER_MINUTE = 60;
export const SECONDS_PER_HOUR = 60 * SECONDS_PER_MINUTE;
export const SECONDS_PER_DAY = 24 * SECONDS_PER_HOUR;

const timeUnits = [
  ['D', SECONDS_PER_DAY],
  ['H', SECONDS_PER_HOUR],
  ['M', SECONDS_PER_MINUTE],
  ['S', SECONDS_PER_SECOND],
];

export default function secondsToDuration(seconds) {
  let duration = 'P';
  let remainder = seconds;

  timeUnits.forEach(([unit, value]) => {
    const timeValue = Math.floor(remainder / value);

    remainder = remainder % value;

    if (timeValue) {
      duration += `${timeValue}${unit}`;
    }
  });

  if (duration == 'P') {
    duration = 'P0S';
  }

  return duration;
}

Testing the Conversion with Jest

import secondsToDuration, {
  SECONDS_PER_SECOND,
  SECONDS_PER_MINUTE,
  SECONDS_PER_HOUR,
  SECONDS_PER_DAY,
} from './seconds-to-duration';

describe('secondsToDuration', () => {
  describe('handling even units', () => {
    it('should handle days', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_DAY * i)).toEqual(`P${i}D`);
      }
    });

    it('should handle hours', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_HOUR * i)).toEqual(`P${i}H`);
      }
    });

    it('should handle minutes', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_MINUTE * i)).toEqual(`P${i}M`);
      }
    });

    it('should handle seconds', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_SECOND * i)).toEqual(`P${i}S`);
      }
    });

    it('should handle zero seconds', () => {
      expect(secondsToDuration(0)).toEqual('P0S');
    });
  });

  describe('handling uneven time units', () => {
    it('should break across periods', () => {
      let days = 2;

      while (days--) {
        let hours = 24;

        while (hours--) {
          let minutes = 60;

          while (minutes--) {
            testDuration({ days, hours, minutes, seconds: 59 });
            testDuration({ days, hours, minutes, seconds: 1 });
          }
        }
      }
    });
  });
});

function testDuration({ days, hours, minutes, seconds }) {
  const totalSeconds =
    days * SECONDS_PER_DAY +
    hours * SECONDS_PER_HOUR +
    minutes * SECONDS_PER_MINUTE +
    seconds * SECONDS_PER_SECOND;
  const expected = `P${days}D${hours}H${minutes}M${seconds}S`.replace(/(?<=\D)0\w/g, '');
  const result = secondsToDuration(totalSeconds);

  if (result != expected) {
    console.info({ totalSeconds, expected, result });
  }

  expect(result).toEqual(expected);
}

Answer 2

Converting Seconds to Duration

export const SECONDS_PER_SECOND = 1;
export const SECONDS_PER_MINUTE = 60;
export const SECONDS_PER_HOUR = 60 * SECONDS_PER_MINUTE;
export const SECONDS_PER_DAY = 24 * SECONDS_PER_HOUR;

const timeUnits = [
  ['D', SECONDS_PER_DAY],
  ['H', SECONDS_PER_HOUR],
  ['M', SECONDS_PER_MINUTE],
  ['S', SECONDS_PER_SECOND],
];

export default function secondsToDuration(seconds) {
  let duration = 'P';
  let remainder = seconds;

  timeUnits.forEach(([unit, value]) => {
    const timeValue = Math.floor(remainder / value);

    remainder = remainder % value;

    if (timeValue) {
      duration += `${timeValue}${unit}`;
    }
  });

  if (duration == 'P') {
    duration = 'P0S';
  }

  return duration;
}

Testing the Conversion with Jest

import secondsToDuration, {
  SECONDS_PER_SECOND,
  SECONDS_PER_MINUTE,
  SECONDS_PER_HOUR,
  SECONDS_PER_DAY,
} from './seconds-to-duration';

describe('secondsToDuration', () => {
  describe('handling even units', () => {
    it('should handle days', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_DAY * i)).toEqual(`P${i}D`);
      }
    });

    it('should handle hours', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_HOUR * i)).toEqual(`P${i}H`);
      }
    });

    it('should handle minutes', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_MINUTE * i)).toEqual(`P${i}M`);
      }
    });

    it('should handle seconds', () => {
      let i = 10;

      while (--i) {
        expect(secondsToDuration(SECONDS_PER_SECOND * i)).toEqual(`P${i}S`);
      }
    });

    it('should handle zero seconds', () => {
      expect(secondsToDuration(0)).toEqual('P0S');
    });
  });

  describe('handling uneven time units', () => {
    it('should break across periods', () => {
      let days = 2;

      while (days--) {
        let hours = 24;

        while (hours--) {
          let minutes = 60;

          while (minutes--) {
            testDuration({ days, hours, minutes, seconds: 59 });
            testDuration({ days, hours, minutes, seconds: 1 });
          }
        }
      }
    });
  });
});

function testDuration({ days, hours, minutes, seconds }) {
  const totalSeconds =
    days * SECONDS_PER_DAY +
    hours * SECONDS_PER_HOUR +
    minutes * SECONDS_PER_MINUTE +
    seconds * SECONDS_PER_SECOND;
  const expected = `P${days}D${hours}H${minutes}M${seconds}S`.replace(/(?<=\D)0\w/g, '');
  const result = secondsToDuration(totalSeconds);

  if (result != expected) {
    console.info({ totalSeconds, expected, result });
  }

  expect(result).toEqual(expected);
}

Answer 3

Answer №2

There seems to be a bug in that script (refer to my comment). Have you considered utilizing this package as an alternative: https://www.npmjs.com/package/tinyduration

Answer 4

There seems to be a bug in that script (refer to my comment). Have you considered utilizing this package as an alternative: https://www.npmjs.com/package/tinyduration

Transform seconds into an ISO 8601 duration using JavaScript

Answer №1

Converting Seconds to Duration

Testing the Conversion with Jest

Answer №2

Similar questions

How can you pass two distinct variables in a JavaScript function?

Is it possible to alter objects through the use of jQuery.map?

Can you provide the name of the slideshow plugin used on the Wipro website?

Angular UI Grid failing to properly display date formatting

Is the NPM package not being imported? How exactly is it being utilized?

Emotion, material-ui, and typescript may lead to excessively deep type instantiation that could potentially be infinite

Having trouble establishing a connection with Mongo.Client on localhost 27017 for MongoDB

Executing server-side method with jQuery in .Net 1.1

Tips for creating a unique design for a form that includes a non-binary mask, inspired by bitmasks

Having trouble getting JavaScript to work when returned via AJAX

Ionic timer binding issue: troubleshooting tips

Can you explain the distinction between browser.sleep() and browser.wait() functions?

Displaying JSON array data across three different pages using AngularJS and Ionic framework

Is it possible to apply several 'where' condition in pg-promise?

Alert popup onclick feature is malfunctioning

Margin ambiguity in a vue.js application

When trying to append in jQuery, the error "JQuery V[g].exec is not a

What is the process of retrieving the return value after creating data in Firestore

How can I turn off the animation for a q-select (quasar select input)?

I have the latitude and longitude for both the shop and user, and I am looking to display a list of shops in order based