As of August 1, 2023, this name is no longer defined by a Web Platform specification
Definition
Direct Sockets API defines UDPSocketOptions
dictionary UDPSocketOptions {
DOMString remoteAddress;
[EnforceRange] unsigned short remotePort;
DOMString localAddress;
[EnforceRange] unsigned short localPort;
[EnforceRange] unsigned long sendBufferSize;
[EnforceRange] unsigned long receiveBufferSize;
SocketDnsQueryType dnsQueryType;
boolean ipv6Only;
};