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Send message to specific client with socket.io and node.js
... edited Oct 6 '19 at 12:33
Dev01
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answered Jan 10 '11 at 14:14
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What do all of Scala's symbolic operators mean?
...he last one is interesting, because any symbolic method can be combined to form an assignment-like method that way.
And, of course, there's various combinations that can appear in code:
(_+_) // An expression, or parameter, that is an anonymous function with
// two parameters, used exactly w...
How do I reattach to a detached mosh session?
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Alexander BurmakAlexander Burmak
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How to tell if rails is in production?
...wered Sep 18 '14 at 13:43
bkunzi01bkunzi01
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upstream sent too big header while reading response header from upstream
...: PHP Notice: Undefined index:
Example snippet from a loop my log file:
2015/11/23 10:30:02 [error] 32451#0: *580927 FastCGI sent in stderr: "PHP message: PHP Notice: Undefined index: Firstname in /srv/www/classes/data_convert.php on line 1090
PHP message: PHP Notice: Undefined index: Lastname i...
How to iterate over rows in a DataFrame in Pandas
...sions (vanilla for loop)
DataFrame.apply(): i) Reductions that can be performed in Cython, ii) Iteration in Python space
DataFrame.itertuples() and iteritems()
DataFrame.iterrows()
iterrows and itertuples (both receiving many votes in answers to this question) should be used in very rare circumst...
What is NODE_ENV and how to use it in Express?
...lowing code to access the environment variable yourself so that you can perform your own checks and logic:
var environment = process.env.NODE_ENV
Assume production if you don't recognise the value:
var isDevelopment = environment === 'development'
if (isDevelopment) {
setUpMoreVerboseLogging()
}...
Who is “us” and who is “them” according to Git?
...ore, "us" = HEAD, but since git did a new checkout behind-the-scenes to perform this rebase, HEAD is NOT the branch you were on when you typed git rebase master. Instead, us, or HEAD, is some merge-base commit at which point a conflict occurred, and them is the other commit, which is some commit fro...
asynchronous vs non-blocking
...ure out.
To make a good choice, you must analyze your need and test the performance of different architectures. There is no such an architecture that is suitable for various of needs.
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What's the difference between SoftReference and WeakReference in Java?
...rather than expand the heap, whereas the -server JRE tries to keep your performance high by preferring to expand the heap (if possible) rather than clear SoftReferences. One size does not fit all.
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