index.js 3.9 KB

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  1. "use strict";
  2. var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault").default;
  3. Object.defineProperty(exports, "__esModule", {
  4. value: true
  5. });
  6. exports.default = formatRFC3339;
  7. var _index = _interopRequireDefault(require("../toDate/index.js"));
  8. var _index2 = _interopRequireDefault(require("../isValid/index.js"));
  9. var _index3 = _interopRequireDefault(require("../_lib/addLeadingZeros/index.js"));
  10. var _index4 = _interopRequireDefault(require("../_lib/toInteger/index.js"));
  11. /**
  12. * @name formatRFC3339
  13. * @category Common Helpers
  14. * @summary Format the date according to the RFC 3339 standard (https://tools.ietf.org/html/rfc3339#section-5.6).
  15. *
  16. * @description
  17. * Return the formatted date string in RFC 3339 format. Options may be passed to control the parts and notations of the date.
  18. *
  19. * @param {Date|Number} date - the original date
  20. * @param {Object} [options] - an object with options.
  21. * @param {0|1|2|3} [options.fractionDigits=0] - number of digits after the decimal point after seconds
  22. * @returns {String} the formatted date string
  23. * @throws {TypeError} 1 argument required
  24. * @throws {RangeError} `date` must not be Invalid Date
  25. * @throws {RangeError} `options.fractionDigits` must be between 0 and 3
  26. *
  27. * @example
  28. * // Represent 18 September 2019 in RFC 3339 format:
  29. * const result = formatRFC3339(new Date(2019, 8, 18, 19, 0, 52))
  30. * //=> '2019-09-18T19:00:52Z'
  31. *
  32. * @example
  33. * // Represent 18 September 2019 in RFC 3339 format, 2 digits of second fraction:
  34. * const result = formatRFC3339(new Date(2019, 8, 18, 19, 0, 52, 234), { fractionDigits: 2 })
  35. * //=> '2019-09-18T19:00:52.23Z'
  36. *
  37. * @example
  38. * // Represent 18 September 2019 in RFC 3339 format, 3 digits of second fraction
  39. * const result = formatRFC3339(new Date(2019, 8, 18, 19, 0, 52, 234), { fractionDigits: 3 })
  40. * //=> '2019-09-18T19:00:52.234Z'
  41. */
  42. function formatRFC3339(dirtyDate, options) {
  43. var _options$fractionDigi;
  44. if (arguments.length < 1) {
  45. throw new TypeError("1 arguments required, but only ".concat(arguments.length, " present"));
  46. }
  47. var originalDate = (0, _index.default)(dirtyDate);
  48. if (!(0, _index2.default)(originalDate)) {
  49. throw new RangeError('Invalid time value');
  50. }
  51. var fractionDigits = Number((_options$fractionDigi = options === null || options === void 0 ? void 0 : options.fractionDigits) !== null && _options$fractionDigi !== void 0 ? _options$fractionDigi : 0);
  52. // Test if fractionDigits is between 0 and 3 _and_ is not NaN
  53. if (!(fractionDigits >= 0 && fractionDigits <= 3)) {
  54. throw new RangeError('fractionDigits must be between 0 and 3 inclusively');
  55. }
  56. var day = (0, _index3.default)(originalDate.getDate(), 2);
  57. var month = (0, _index3.default)(originalDate.getMonth() + 1, 2);
  58. var year = originalDate.getFullYear();
  59. var hour = (0, _index3.default)(originalDate.getHours(), 2);
  60. var minute = (0, _index3.default)(originalDate.getMinutes(), 2);
  61. var second = (0, _index3.default)(originalDate.getSeconds(), 2);
  62. var fractionalSecond = '';
  63. if (fractionDigits > 0) {
  64. var milliseconds = originalDate.getMilliseconds();
  65. var fractionalSeconds = Math.floor(milliseconds * Math.pow(10, fractionDigits - 3));
  66. fractionalSecond = '.' + (0, _index3.default)(fractionalSeconds, fractionDigits);
  67. }
  68. var offset = '';
  69. var tzOffset = originalDate.getTimezoneOffset();
  70. if (tzOffset !== 0) {
  71. var absoluteOffset = Math.abs(tzOffset);
  72. var hourOffset = (0, _index3.default)((0, _index4.default)(absoluteOffset / 60), 2);
  73. var minuteOffset = (0, _index3.default)(absoluteOffset % 60, 2);
  74. // If less than 0, the sign is +, because it is ahead of time.
  75. var sign = tzOffset < 0 ? '+' : '-';
  76. offset = "".concat(sign).concat(hourOffset, ":").concat(minuteOffset);
  77. } else {
  78. offset = 'Z';
  79. }
  80. return "".concat(year, "-").concat(month, "-").concat(day, "T").concat(hour, ":").concat(minute, ":").concat(second).concat(fractionalSecond).concat(offset);
  81. }
  82. module.exports = exports.default;