dayjs/esm/plugin/advancedFormat/index.js

2KB immutable date time library alternative to Moment.js with the same modern API

import { FORMAT_DEFAULT } from '../../constant';
export default (function (o, c, d) {
  // locale needed later
  var proto = c.prototype;
  var oldFormat = proto.format;

  d.en.ordinal = function (number) {
    var s = ['th', 'st', 'nd', 'rd'];
    var v = number % 100;
    return "[" + number + (s[(v - 20) % 10] || s[v] || s[0]) + "]";
  }; // extend en locale here


  proto.format = function (formatStr) {
    var _this = this;

    var locale = this.$locale();
    var utils = this.$utils();
    var str = formatStr || FORMAT_DEFAULT;
    var result = str.replace(/Q|Do|X|x|k{1,2}|S/g, function (match) {
      switch (match) {
        case 'Q':
          return Math.ceil((_this.$M + 1) / 3);

        case 'Do':
          {
            return locale.ordinal(_this.$D);
          }

        case 'k':
        case 'kk':
          return utils.s(String(_this.$H === 0 ? 24 : _this.$H), match === 'k' ? 1 : 2, '0');

        case 'X':
          return Math.floor(_this.$d.getTime() / 1000);

        default:
          // 'x'
          return _this.$d.getTime();
      }
    });
    return oldFormat.bind(this)(result);
  };
});