validFrom constant

IriTerm const validFrom

validFrom [Expects: https://schema.org/Date, https://schema.org/DateTime]

The date when the item becomes valid.

Can be used on: https://schema.org/Certification, https://schema.org/Demand, https://schema.org/FinancialIncentive, https://schema.org/LocationFeatureSpecification, https://schema.org/MonetaryAmount, https://schema.org/Offer, https://schema.org/OpeningHoursSpecification, https://schema.org/Permit, https://schema.org/PriceSpecification

Implementation

static const validFrom = const IriTerm('https://schema.org/validFrom');