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socket.emit() vs. socket.send()
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https://socket.io/docs/client-api/#socket-send-args-ack
socket.send // Sends a message event
socket.emit(eventName[, ...args][, ack]) // you can custom eventName
share
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Convert Dictionary to semicolon separated string in c#
....Key, x.Value) instead of the + operator
– Amittai Shapira
Oct 6 '10 at 11:14
Edited according to comments.
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What is the difference between task and thread?
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I/O Bound: For I/O bound operations (database calls, read/write files, APIs calls, etc) avoid using normal tasks, use LongRunning tasks (or threads if you need to). Because using tasks would lead you to a thread pool with a few threads busy and a lot of another tasks waiting for its turn to take...
What is the purpose of the single underscore “_” variable in Python?
... lambda), where
the signature is fixed (e.g. by a callback or parent class API), but
this particular function implementation doesn't need all of the
parameters, as in code like: callback = lambda _: True
The python linter recognizes the underscore as a purposefully unused variable (both use cases ab...
Safe characters for friendly url [closed]
... use the above two chars in Path property? docs.microsoft.com/en-us/dotnet/api/…
– karsnen
Feb 15 at 0:27
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Using module 'subprocess' with timeout
...t know much about the low level details; but, given that in
python 2.6 the API offers the ability to wait for threads and
terminate processes, what about running the process in a separate
thread?
import subprocess, threading
class Command(object):
def __init__(self, cmd):
self.cmd = cm...
What is the best method of handling currency/money?
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Use number_to_currency helper, more info at api.rubyonrails.org/classes/ActionView/Helpers/…
– mlibby
Jun 19 '09 at 21:45
48
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PHP + MySQL transactions examples
...e
and PDO::ATTR_ERRMODE and PDO::ERRMODE_EXCEPTION
else, with some other API, you might have to test the result of the function used to execute a query, and throw an exception yourself.
Unfortunately, there is no magic involved. You cannot just put an instruction somewhere and have transactions ...
How is location accuracy measured in Android?
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What API lets you specify accuracy of 100 meters? I see Criteria of ACCURACY_COARSE, ACCURACY_FINE, ACCURACY_HIGH, ACCURACY_LOW, ACCURACY_MEDIUM, but not 100 meters.
– Cris
Aug 8 '13 at 0:04...
Why is there no String.Empty in Java?
...n the number of up-votes it received.
It's about the symmetry, without it APIs are harder to use for humans. Early Java SDKs notoriously ignored the rule and now it's kind of too late. Here are a few examples on top of my head, feel free to chip in your "favorite" example:
BigDecimal.ZERO, but n...