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Formatting a float to 2 decimal places
I am currently building a sales module for a clients website. So far I have got the sale price to calculate perfectly but where I have come stuck is formatting the output to 2 decimal places.
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Performance of foreach, array_map with lambda and array_map with static function
What's the performance difference (if there is any) between these three approaches, both used to transform an array to another array?
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When is an interface with a default method initialized?
While searching through the Java Language Specification to answer this question , I learned that
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Get the IP address of the remote host
In ASP.NET there is a System.Web.HttpRequest class, which contains ServerVariables property which can provide us the IP address from REMOTE_ADDR property value.
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Java 8 Streams: multiple filters vs. complex condition
Sometimes you want to filter a Stream with more than one condition:
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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
To allocate() or to allocateDirect() , that is the question.
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Why do I have to access template base class members through the this pointer?
If the classes below were not templates I could simply have x in the derived class. However, with the code below, I have to use this->x . Why?
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Why does Unicorn need to be deployed together with Nginx?
I would like to know the difference between Nginx and Unicorn. As far as I understand, Nginx is a web server while Unicorn is a Ruby HTTP server.
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What is meaning of boolean value returned from an event-handling method in Android
...hat is that true/false value mean ? what will it result in to the subsequence events ?
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Multiple INSERT statements vs. single INSERT with multiple VALUES
I'm running a performance comparison between using 1000 INSERT statements:
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