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How to properly seed random number generator

... simply call Intn to get the next random integer. Move the rand.Seed(time.Now().UTC().UnixNano()) line from the randInt function to the start of the main and everything will be faster. Note also that I think you can simplify your string building: package main import ( "fmt" "math/rand" ...
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What is the correct way to start a mongod service on linux / OS X?

... been able to run it, work with it, do simple DB read / write type stuff. Now I'm trying to set up my Mac to run mongod as a service. ...
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Measuring execution time of a function in C++

...5; } } int main() { auto t1 = std::chrono::high_resolution_clock::now(); function(); auto t2 = std::chrono::high_resolution_clock::now(); auto duration = std::chrono::duration_cast<std::chrono::microseconds>( t2 - t1 ).count(); std::cout << duration; return...
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What's a good way to overwrite DateTime.Now during testing?

... test, which doesn't feel right. What's the best way to set the date to a known value within the test so that I can test that the result is a known value? ...
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How to make a SPA SEO crawlable?

...stand what google requires, particularly the use of pretty and ugly URLs. Now lets see the implementation: Client Side On the client side you only have a single html page which interacts with the server dynamically via AJAX calls. that's what SPA is about. All the a tags in the client side are ...
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Ruby max integer

I need to be able to determine a systems maximum integer in Ruby. Anybody know how, or if it's possible? 6 Answers ...
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Current time in microseconds in java

...ave System.nanoTime(), but that just gives an offset from some previously known time. So whilst you can't take the absolute number from this, you can use it to measure nanosecond (or higher) precision. Note that the JavaDoc says that whilst this provides nanosecond precision, that doesn't mean nano...
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Will Google Android ever support .NET? [closed]

Now that the G1 with Google's Android OS is now available (soon), will the android platform ever support .Net? 13 Answers ...
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Why is Swift compile time so slow?

...le file (actually one method) that was causing the compiler to go berzek. Now don't get me wrong. Swift does recompile all your files each time, but the great thing now, is that Apple added real-time compilation feedback over the files it compiles, so Xcode 6 GM now shows which Swift files are bein...
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Changing Java Date one hour back

...lDateTime().minusHours(1) Java 8: java.time.LocalDateTime LocalDateTime.now().minusHours(1) Java 8 java.time.Instant // always in UTC if not timezone set Instant.now().minus(1, ChronoUnit.HOURS)); // with timezone, Europe/Berlin for example Instant.now() .atZone(ZoneId.of("Europe/Berlin...