pomeranian-durations/lib/math.js

An immutable duration library based on the ISO-8601 format for durations.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.invert = exports.absolute = void 0;

var _transformations = require("./transformations");

var _utils = require("./_utils");

/**
 * Generic helpers to do math operations on durations.
 * @name default
 */

/**
 * Converts all negative values from a duration and converts them to be positive.
 * @param isoString {string} - isoString
 * @returns isoString
 * @example
 * absolute('PT-1S') // => 'PT1S'
 * @example
 * absolute('PT1S') // => 'PT1S'
 */
var absolute = function absolute(isoString) {
  return (0, _utils.pipe)(isoString, _transformations.toFragments, (0, _utils.mapValues)(Math.abs), _transformations.toIso);
};
/**
 * Inverts all units of an iso duration.
 * @param isoString {string} - isoString
 * @returns isoString
 * @example
 * invert('PT-1M') // => 'PT1M'
 * @example
 * invert('P-1DT1S') // => 'P1DT-1S'
 */


exports.absolute = absolute;

var invert = function invert(isoString) {
  return (0, _utils.pipe)(isoString, _transformations.toFragments, (0, _utils.mapValues)(_utils.negate), _transformations.toIso);
};

exports.invert = invert;