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What is the difference between lower bound and tight bound?
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In simple terms can we call: upper bound (Big(O)) as the worst case? tight bound as the average case? lower bound (Omega) as the best case?
– Revanth
Mar 12 '18 at 22:30
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When is assembly faster than C?
...nstruction. Some compilers used to ignore this fact and generate code that calls a runtime library function to do the multiply. The shift by 16 is also often done by a library routine (also the x86 can do such shifts).
So we're left with one or two library calls just for a multiply. This has seriou...
Cannot set boolean values in LocalStorage?
...rting storing non-strings. See https://www.w3.org/Bugs/Public/show_bug.cgi?id=12111 for detail.
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Performing a Stress Test on Web Application?
...e, web, web services, database, just about anything that uses requests basically).
It does however have a steep learning curve once you start getting to complicated tests, but it's well worth it. You can get up and running very quickly, and depending on what sort of stress-testing you want to do, t...
Status bar and navigation bar appear over my view's bounds in iOS 7
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You can achieve this by implementing a new property called edgesForExtendedLayout in iOS7 SDK. Please add the following code to achieve this,
if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
self.edgesForExtendedLayout = UIRectEdgeNone;
You need to a...
Branch from a previous commit using Git
..., as long as the shortened hash is ''unique'' in the repository. So if it didn’t work, try adding another character from the hash.
– poke
May 17 '13 at 12:08
31
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Get the client's IP address in socket.io
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for 1.0.4:
io.sockets.on('connection', function (socket) {
var socketId = socket.id;
var clientIp = socket.request.connection.remoteAddress;
console.log(clientIp);
});
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How does the ARM architecture differ from x86? [closed]
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ARMv8-A has a 64-bit architecture called AArch64.
– kyrias
Nov 23 '13 at 20:58
10
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Replace only some groups with Regex
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A good idea could be to encapsulate everything inside groups, no matter if need to identify them or not. That way you can use them in your replacement string. For example:
var pattern = @"(-)(\d+)(-)";
var replaced = Regex.Replace(...
IF… OR IF… in a windows batch file
...r an arbitrarily long list. It does require delayed expansion (or else the CALL %%VAR%% trick). Also the test is CASE INSENSITIVE.
set "TEST=;val1;val2;val3;val4;val5;"
if "!TEST:;%VAR%;=!" neq "!TEST!" (echo true) else (echo false)
The above can fail if VAR contains =, so the test is not fool-proo...