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doc: clarify error handling in net/createServer #5353

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doc: clarify error handling in net/createServer #5353

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18 changes: 10 additions & 8 deletions doc/api/net.markdown
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Original file line number Diff line number Diff line change
Expand Up @@ -48,11 +48,13 @@ Example:
```js
var server = net.createServer((socket) => {
socket.end('goodbye\n');
}).on('error', (err) => {
// handle errors here
throw err;
});

// grab a random port.
server.listen((err) => {
if (err) throw err;
server.listen(() => {
address = server.address();
console.log('opened server on %j', address);
});
Expand Down Expand Up @@ -660,9 +662,10 @@ const server = net.createServer((c) => {
c.write('hello\r\n');
c.pipe(c);
});
server.listen(8124, (err) => {
// 'listening' listener
if (err) throw err;
server.on('error', (err) => {
throw err;
});
server.listen(8124, () => {
console.log('server bound');
});
```
Expand All @@ -677,9 +680,8 @@ To listen on the socket `/tmp/echo.sock` the third line from the last would
just be changed to

```js
server.listen('/tmp/echo.sock', (err) => {
// 'listening' listener
if (err) throw err;
server.listen('/tmp/echo.sock', () => {
console.log('server bound');
});
```

Expand Down