fix: make udp4 default more resilient

KernelDeimos · lsongdev · commit e4fa035aca0b · 2025-05-14T06:56:07.000+08:00
If 'type' was not specified in an object argument to the constructor of
UDPSocket, it would result in an undefined value. This is probably not
what the user intended and it always results in an exception being
thrown.
diff --git a/server/udp.js b/server/udp.js
@@ -10,7 +10,7 @@ class Server extends udp.Socket {
   constructor(options) {
     let type = 'udp4';
     if (typeof options === 'object') {
-      type = options.type;
+      type = options.type ?? type;
     }
     super(type);
     if (typeof options === 'function') {

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@ class Server extends udp.Socket {`
`10`	`10`	`constructor(options) {`
`11`	`11`	`let type = 'udp4';`
`12`	`12`	`if (typeof options === 'object') {`
`13`		`- type = options.type;`
	`13`	`+ type = options.type ?? type;`
`14`	`14`	`}`
`15`	`15`	`super(type);`
`16`	`16`	`if (typeof options === 'function') {`