javascript - invalid non-string/buffer chunk Node.js -

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i'm studying node.js @ college, , it's first time learning kind of programming language. i've got errors in attempt of chat server. when try connect 1 client server, connection closes inmmediately , appears error 'invalid non-string/buffer chunk'. upload screenshots , can check wrong, because i've been thinking while , don't find solution.

click here see git bash

my code in javascript:

 var net = require('net');  var s = require  var sockets = [];  var nombres = [];  var nombresusados = [];  console.log("se ha iniciado el sevidor");   var server = net.createserver(function(socket){   socket.push(socket);   nombres.push("cliente:" + sockets.indexof(socket));    nombresusados.push("cliente:" + socket.indexof(socket));      console.log("cliente aceptado, nick:" + nombres[sockets.indexof(socket)]);       socket.write("bienvenido" + nombres[sockets.indexof(socket)]+ "\n");     ![enter image description here][2]socket.on('data', function(d){  var entrada = d.tostring(); var usuariounico = entrada.match(/^msg/); var cambiarnick =  entrada.match(/^nick/);  var quit =  entrada.match(/^quit/);  if(cambiarnick == "nick"){ var repetido = 0; var nombressinnick = entrada.replace(cambiarnick, ''); for(var = nombres.length-1; i<=0; i--){           if( nombressinnick.substring(0,nombres[i].tostring().length) == nombres[i].tostring()){               socket.write("ko, escoja otro nombre\n")                  repetido = 1;           }   };    if(repetido == 0){     nombres[sockets.indexof(socket)] == nombressinnick.trim();     process.on('uncaughtexception', function(err){      socket.write("ko\n");    });         socket.write("ok. " + nombres[sockets.indexof(socket)] + "\n");        console.log(nombresusados[sockets.indexof(socket)]) + "su nombre ha sido cambiado por:" + nombres[sockets.indexof(socket)];        nombresusados[sockets.indexof(socket)] = nombressinnick.trim();      }     }     else if (usuariounico = "msg"){      var nombressinmsg = entrada.replace(usuariounico, '');        var encontrado = 0;        for(var = nombres.length-1; i<=0; i--){           if( nombressinmsg.substring(0,nombres[i].tostring().length) == nombres[i].tostring()){             var mensaje = nombressinmsg.replace(nombres[i], '');          }       };    socket.on('end', function() {          // callback: desconexión de cliente     if(quit == 'quit'){        var = nombres[sockets.indexof(socket)];        sockets.splice(i, 1);           console.log("ha salido el usuario:" + nombres[sockets.indexof(socket)]);      }     });   }    });   });   server.listen(9000);

i think problem line socket.push(socket). mean sockets.push(socket). you're doing now, attempting push socket instance socket stream fails because, error says, it's not string or buffer.


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