Method union

app/models/User.js:910–910

(res, prepaid)

      if (!courseProducts.length) { return utils.courseNumericalStatus.NO_ACCESS }
      if (_.some(courseProducts, p => (p.productOptions?.includedCourseIDs == null))) { return utils.courseNumericalStatus.FULL_ACCESS }
      const union = (res, prepaid) => _.union(res, prepaid.productOptions?.includedCourseIDs != null ? prepaid.productOptions?.includedCourseIDs : [])
      const courses = _.reduce(courseProducts, union, [])
      const fun = (s, k) => s + utils.courseNumericalStatus[k]
      return _.reduce(courses, fun, 0)