vCard
vCard is a file format standard for electronic business cards, used to exchange contact information between applications and devices. It encodes details such as name, address, phone numbers, email, and URLs in a structured text format, typically with a .vcf file extension. The format is widely supported by email clients, address books, and mobile operating systems for importing and exporting contacts.
Developers should learn vCard when building applications that handle contact management, such as CRM systems, email clients, or mobile apps, to ensure interoperability and data exchange. It is essential for implementing features like contact sharing, synchronization across platforms, or parsing contact data from external sources, as it provides a standardized way to represent personal information.