moment-biz/lib/locale.js

Handle business days & weekends over multiple years

'use strict';

const moment = require('moment');

// Detect if we are on node or not
const isNode = new Function('try { return this === global; } catch(e) { return false; } ');

const loaded = {};

function wrapLocale(obj) {
  const localeFn = obj.locale;

  // On browsers, locales should be loaded manually so this makes no sense to wrap locale anyway
  /* istanbul ignore if */
  if (!isNode())
    return;

  // Node.js implementation
  obj.locale = function(locale) {
    if (!arguments.length || loaded[locale] || locale.split('-').length !== 2)
      return localeFn.call(this, ...arguments);

    const globalLocale = moment.locale();

    try {
      const path = require('path');
      require(path.join(__dirname, '../locale', locale));
      loaded[locale] = true;
      moment.locale(globalLocale);
    }
    finally {
      return localeFn.call(this, ...arguments);
    }
  };
}

// Wrap locale functions to auto load locales on node.js
wrapLocale(moment);
wrapLocale(moment.fn);