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Readable-Writable Streams: Duplex Example
seetdev
Posts: 9
The code examples for Duplex in Readable-Writable Streams does not appear to be matching the outputs shown. I can see the 3 beat
outputs coming from socket.write('beat')
on the server side and the ALL DONE
coming from socket.write('all done')
on the client but I cannot find the HELLO
output. Is something missing from the client code
server code
'use strict' const net = require('net') net.createServer((socket) => { const interval = setInterval(() => { socket.write('beat') }, 1000) socket.on('data', (data) => { socket.write(data.toString().toUpperCase()) }) socket.on('end', () => { clearInterval(interval) }) }).listen(3000)
client code
'use strict' const net = require('net') const socket = net.connect(3000) socket.on('data', (data) => { console.log('got data:', data.toString()) }) setTimeout(() => { socket.write('all done') setTimeout(() => { socket.end() }, 250) }, 3250)
output on client
got data: HELLO
got data: beat
got data: beat
got data: beat
got data: ALL DONE
0
Comments
-
I tested running the code and I believe that the client code is missing a line.
The output will only be correct ifsocket.write("hello");
is added before the firstsetTimeout
block."use strict"; const net = require("net"); const socket = net.connect(3000); socket.on("data", (data) => { console.log("got data:", data.toString()); }); socket.write("hello"); setTimeout(() => { socket.write("all done"); setTimeout(() => { socket.end(); }, 250); }, 3250);
Does anyone encounter the same behaviour?
0 -
That is what I did.
0 -
thanks @seetdev - you're correct about the missing line, thanks for letting us know
0
This discussion has been closed.
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