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What is an idempotent operation?
...tocols, where a request to perform an operation is guaranteed to happen at least once, but might also happen more than once. If the operation is idempotent, then there is no harm in performing the operation two or more times.
See the Wikipedia article on idempotence for more information.
The abo...
How can I process each letter of text using Javascript?
... @paul_sns Interestingly, there does seem to be a minor difference, at least in Edge (0.7ms difference for a 10000 element array): jsfiddle.net/carcigenicate/v8vvjoc1/1. Probably not a perfect test, but it's based of an average of 10000 tests.
– Carcigenicate
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Select n random rows from SQL Server table
...in mind that newid() isn't a really good pseudorandom number generator, at least not nearly as good as rand(). But if you just need some vaguely randomish samples and don't care about mathematical qualities and such, it'll be good enough. Otherwise you need: stackoverflow.com/questions/249301/…
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Regex doesn't work in String.matches()
...acters, use the pattern [a-z]+
if you want to find a string containing at least one lower case character, use the pattern .*[a-z].*
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Are static methods inherited in Java?
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@LucasC.Feijo actually I it does work. At least in my IDE (eclipse). I just get a warning. It might not be good style though... but that's a different story.
– dingalapadum
Apr 25 '17 at 0:00
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Can two applications listen to the same port?
...esn't let you have two TCP sockets in listening state at the same time, at least on Unix. It's meant to get around the TIME_WAIT state: unixguide.net/network/socketfaq/4.5.shtml . It might work on Windows, but you're not guaranteed that the request will reach the right server anyway).
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Better techniques for trimming leading zeros in SQL Server?
...ngValue],
(CASE WHEN CHARINDEX('0', T.Value) > 0--If there's at least one zero.
AND LEN(Parsed.Value) = 0--And the trimmed length is zero.
THEN '0' ELSE Parsed.Value END)[FinalValue],
(CASE WHEN CHARINDEX('0', T.Value) > 0--If there's at least one zer...
User recognition without cookies or local storage
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Even if you choose not to use an Artificial Neural Network, I suggest at least using a Simple Probability Matrix with priorities and likelihoods - and I hope the code and examples provided above give you enough to go on.
s...
Use of def, val, and var in scala
...hat Scala intends to mean though. I don't really like to think that way at least...
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Do you have to include ?
...t will cause every favicon request to send a copy of the sites cookies, at least in chrome. Addressing your favicon to your cookieless domain should correct this.
<link rel="icon" href="https://cookieless.MySite.com/favicon.ico" type="image/x-icon" />
Depending on how much traffic you get, ...