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close vs shutdown socket?
...both sending and receiving (like close). However, close is the way to actually destroy a socket.
With shutdown, you will still be able to receive pending data the peer already sent (thanks to Joey Adams for noting this).
s...
Is HttpClient safe to use concurrently?
In all the examples I can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient .
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Can you 'exit' a loop in PHP?
I have a loop that is doing some error checking in my PHP code. Originally it looked something like this...
6 Answers
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How do I do a case-insensitive string comparison?
...he string Σίσυφος (“Sísyphos”, or better “Síſyphos”) has all three: uppercase at the front, lowercase final at the end, and lowercase nonfinal at the third position. If your two strings are Σίσυφος and ΣΊΣΥΦΟΣ, then your approach fails, because those are supposed to ...
Handling warning for possible multiple enumeration of IEnumerable
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The problem with taking IEnumerable as a parameter is that it tells callers "I wish to enumerate this". It doesn't tell them how many times you wish to enumerate.
I can change the objects parameter to be List and then avoid the possible multiple enumeration but then I don't get the highes...
In Bash, how can I check if a string begins with some value?
... $a == "z*" ]]? In other words: do they work differently? And what specifically do you mean when you say "$a is equal to z*"?
– Niels Bom
Jun 16 '15 at 10:37
5
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Where can I find my Facebook application id and secret key?
...n my Facebook account, where can I find these application IDs, secret key, all?
7 Answers
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~x + ~y == ~(x + y) is always false?
...=> -1 == -2
Hence, a contradiction. Therefore, ~(x+y) != ~x + ~y for all x and y (mod 2n).
*It is interesting to note that on a machine with one's complement arithmetic, the equality actually holds true for all x and y. This is because under one's complement, ~x = -x. Thus, ~x + ~y == -x + ...
What regular expression will match valid international phone numbers?
...e whether a phone number is valid before attempting to dial it. The phone call can go anywhere in the world.
23 Answers
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Memcache(d) vs. Varnish for speeding up 3 tier web architecture
...ache will provide info for pages that have a mixture of known and new data allowing you to generate pages faster.
An example that could apply to stackoverflow.com: adding this comment invalidated the page cache, so this page would have to be cleared from Varnish (and also my profile page, which pr...