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What is the Difference Between read() and recv() , and Between send() and write()?
What is the difference between read() and recv() , and between send() and write() in socket programming in terms of performances, speed and other behaviors?
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How to initialize an array's length in JavaScript?
...he tutorials that I've read on arrays in JavaScript (including w3schools and devguru ) suggest that you can initialize an array with a certain length by passing an integer to the Array constructor using the var test = new Array(4); syntax.
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SQL Server: SELECT only the rows with MAX(DATE)
...o join on a query, as per Cularis' answer.
Alternatively, the most simple and straight forward way is a correlated-sub-query in the WHERE clause.
SELECT
*
FROM
yourTable AS [data]
WHERE
DateEntered = (SELECT MAX(DateEntered) FROM yourTable WHERE orderNo = [data].orderNo)
Or...
WHERE
ID ...
Are static class instances unique to a request or a server in ASP.NET?
...asses unique to each web request, or are they instantiated whenever needed and GCed whenever the GC decides to disposed of them?
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How to make System.out.println() shorter
...d the lib in order to use the shorter expression of System.out.println() and where should I place that lib.
12 Answers
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Pip freeze vs. pip list
...ments.txt
The packages need to be in a specific format for pip to understand, which is
feedparser==5.1.3
wsgiref==0.1.2
django==1.4.2
...
That is the "requirements format".
Here, django==1.4.2 implies install django version 1.4.2 (even though the latest is 1.6.x).
If you do not specify ==1.4....
Secure hash and salt for PHP passwords
...nswer was written in 2008.
Since then, PHP has given us password_hash and password_verify and, since their introduction, they are the recommended password hashing & checking method.
The theory of the answer is still a good read though.
TL;DR
Don'ts
Don't limit what characters user...
Python __str__ versus __unicode__
...ns. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3.0, str contains characters, so the same methods are named __bytes__() and __str__(). These behave as expected.
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No EditorOptionDefinition Export Found Error
...
After a reboot and some more research I found this post from a blog. The error described is not the same error I am seeing, however, it was close enough to warrant a try.
Follow the steps:
Close Visual Studio
Open the folder: %LocalAppDa...
How can I pair socks from a pile efficiently?
Yesterday I was pairing the socks from the clean laundry and figured out the way I was doing it is not very efficient. I was doing a naive search — picking one sock and "iterating" the pile in order to find its pair. This requires iterating over n/2 * n/4 = n 2 /8 socks on average.
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