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frontend/src/utils/dateHelpers.js

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+import { format, isBefore, isToday, parseISO } from 'date-fns'
+
+export const formatDate         = (s) => s ? format(parseISO(s), 'MMM d, yyyy') : ''
+export const formatDateForInput = (s) => s ? s.substring(0, 10) : ''
+export const isOverdue          = (s) => s && isBefore(parseISO(s), new Date()) && !isToday(parseISO(s))
+export const isDueToday         = (s) => s && isToday(parseISO(s))