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Socket.IO - how do I get a list of connected sockets/clients?
... // the default namespace is "/"
, ns = io.of(namespace ||"/");
if (ns) {
for (var id in ns.connected) {
if(roomId) {
var index = ns.connected[id].rooms.indexOf(roomId);
if(index !== -1) {
res.push(ns.connected[id]);
...
Can (domain name) subdomains have an underscore “_” in it?
...s only one restriction on the particular labels
that can be used to identify resource records. That one
restriction relates to the length of the label and the full
name. [...] Implementations of the DNS protocols must not place any
restrictions on the labels that can be used. In particular...
Rails: How does the respond_to block work?
...
No kidding. If you already know how to code, rails might not be for you :-P
– Limited Atonement
Sep 15 at 15:46
add a comment
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sql “LIKE” equivalent in django query
...
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Test if a variable is a list or tuple
In python, what's the best way to test if a variable contains a list or a tuple? (ie. a collection)
13 Answers
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Hash function that produces short hashes?
...mospunk: encoding with base64 does nothing for collision resistance, since if hash(a) collides with hash(b) then base64(hash(a)) also collides with base64(hash(b)).
– Greg Hewgill
Nov 12 '13 at 18:37
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How to show all shared libraries used by executables in Linux?
...ike to know which libraries are used by executables on my system. More specifically, I'd like to rank which libraries are used the most, along with the binaries that use them. How can I do this?
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How do I watch a file for changes?
...://timgolden.me.uk/python/win32_how_do_i/watch_directory_for_changes.html? If you only need it to work under Windows the 2nd example seems to be exactly what you want (if you exchange the path of the directory with the one of the file you want to watch).
Otherwise, polling will probably be the onl...
Rename Files and Directories (Add Prefix)
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Heh, true, this will completely not work if you have a file with a space in it.
– CanSpice
Jan 24 '11 at 21:37
12
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scheduleAtFixedRate vs scheduleWithFixedDelay
... executor.shutdown()
} else {
Thread.sleep(2000L)
val now = System.currentTimeMillis()
time += now - start
System.out.println("Total $time delay ${now - start}\n")
start = now
}
}, 0L, 1000L, TimeUnit.MILLISECONDS)
And see the results:
| scheduleWi...