Posts

Universal Plug and Play

Universal Plug and Play ( UPnP ) is a set of networking protocols that permits networked devices, such as personal computers, printers, Internet gateways, Wi-Fi access points and mobile devices to seamlessly discover each other's presence on the network and establish functional network services for data sharing, communications, and entertainment. UPnP is intended primarily for residential networks without enterprise-class devices. The UPnP technology was promoted by the UPnP Forum, a computer industry initiative to enable simple and robust connectivity to stand-alone devices and personal computers from many different vendors. The Forum consisted of over eight hundred vendors involved in everything from consumer electronics to network computing. Since 2016, all UPnP efforts are now managed by the Open Connectivity Foundation (OCF). [1] UPnP assumes the network runs Internet Protocol (IP) and then leverages HTTP, on top of IP, in order to provide device/service description, ac...

how to get the index of a reoccurring character in swift

Image
-2 var string = "HELLO WOLRD" I want to get all of the indexes of the letter "L" in the string (which in this case would be 2,3 and 8). How do I do that in swift? swift string share | improve this question edited Nov 15 '18 at 16:07 Dávid Pásztor 22.4k 8 28 50 asked Nov 15 '18 at 15:47 Orane Pereira Orane Pereira 3 1 ...