dgram: return self on .bind() and .close()

lib/dgram.js

@@ -170,7 +170,7 @@ Socket.prototype.bind = function(port /*, address, callback*/) {
   if (port instanceof UDP) {
     replaceHandle(self, port);
     startListening(self);
-    return;
+    return self;
   }
 
   var address;
@@ -231,6 +231,8 @@ Socket.prototype.bind = function(port /*, address, callback*/) {
       startListening(self);
     }
   });
+
+  return self;
 };
 
 
@@ -356,6 +358,8 @@ Socket.prototype.close = function() {
   this._handle.close();
   this._handle = null;
   this.emit('close');
+
+  return this;
 };
 
 

test/parallel/test-dgram-bind.js

@@ -29,4 +29,6 @@ socket.on('listening', function () {
   socket.close();
 });
 
-socket.bind(); // should not throw
+var result = socket.bind(); // should not throw
+
+assert.strictEqual(result, socket); // should have returned itself

test/parallel/test-dgram-close.js

@@ -32,7 +32,7 @@ buf.fill(42);
 var socket = dgram.createSocket('udp4');
 var handle = socket._handle;
 socket.send(buf, 0, buf.length, common.PORT, 'localhost');
-socket.close();
+assert.strictEqual(socket.close(), socket);
 socket = null;
 
 // Verify that accessing handle after closure doesn't throw