app.get('/', function(req, res) {
res.set('Content-Type', 'text/html');
res.send('Yo');
setTimeout(function(){
res.send("Yo");
},1000);
});
It looks like "send" ends the request. How can I get this to write Yo on the screen and then 1 second later (sort of like long polling I guess) write the other Yo to get YoYo? Is there some other method other than send?
Use res.write to generate output in pieces and then complete the response with res.end.
I don't think what you are trying to do is possible. Once you send a response, the client-server connection will be closed.
Look into sockets (particularly socket.io) in order to keep a connection open and send multiple messages on it.
If you want to send the result as a single block try
app.get('/', function(req, res) {
res.set('Content-Type', 'text/html');
res.write('Yo');
setTimeout(function(){
res.end("Yo");
},1000);
});
or something like
app.get('/', function(req, res) {
res.set('Content-Type', 'text/html');
var str = 'yo';
setTimeout(function(){
res.end(str + 'yo');
},1000);
});
the thing with node.js is that it relies on an asynchronous "style". so if you introduce something like a "wait" function, you'll lose all the benefits of the asynchronous way of execution.
I believe you can achieve something similar to what you want by:
for example:
for(i=0; i < 100000000; i++) {
//do something
}
