appjs25-eas-update-workshop-code/utils/dateUtils.ts

// Date-time utils for the persistent date hook and for date comparison

export const date1GreaterThanDate2 = (
  date1: Date | undefined,
  date2: Date | undefined,
) => dateToTimeInMilliSeconds(date1) > dateToTimeInMilliSeconds(date2);

const dateToTimeInMilliSeconds = (date: Date | undefined) =>
  date ? Math.floor(date.getTime()) : -1;

export const dateDifferenceInMilliSeconds = (
  date1: Date | undefined,
  date2: Date | undefined,
) => dateToTimeInMilliSeconds(date1) - dateToTimeInMilliSeconds(date2);