text: import { toInt } from '../utils/type-checks';
  const ordering = ['year', 'quarter', 'month', 'week', 'day', 'hours', 'minutes', 'seconds', 'milliseconds'];
  const ɵ0 = (mem, order) => {
      mem[order] = true;
      return mem;
  };
  const orderingHash = ordering.reduce(ɵ0, {});
  export function isDurationValid(duration) {
      const durationKeys = Object.keys(duration);
      if (durationKeys
          .some((key) => {
          return (key in orderingHash)
              && duration[key] === null
              || isNaN(duration[key]);
      })) {
          return false;
      }
      // for (let key in duration) {
      //   if (!(indexOf.call(ordering, key) !== -1 && (duration[key] == null || !isNaN(duration[key])))) {
      //     return false;
      //   }
      // }
      let unitHasDecimal = false;
      for (let i = 0; i < ordering.length; ++i) {
          if (duration[ordering[i]]) {
              // only allow non-integers for smallest unit
              if (unitHasDecimal) {
                  return false;
              }
              if (duration[ordering[i]] !== toInt(duration[ordering[i]])) {
                  unitHasDecimal = true;
              }
          }
      }
      return true;
  }
  export { ɵ0 };
  // export function isValid() {
  //   return this._isValid;
  // }
  //
  // export function createInvalid(): Duration {
  //   return createDuration(NaN);
  // }
  //# sourceMappingURL=valid.js.map