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What is the advantage of GCC's __builtin_expect in if else statements?

... 7: R_X86_64_PC32 time-0x4 b: 48 85 c0 test %rax,%rax e: 75 0a jne 1a <main+0x1a> 10: bf 00 00 00 00 mov $0x0,%edi 11: R_X86_64_32 .rodata.str1.1 15: e8 00 00 00 00 call...
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One-liner to recursively list directories in Ruby?

What is the fastest, most optimized, one-liner way to get an array of the directories (excluding files) in Ruby? 9 Answer...
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Loading a properties file from Java package

... two cases relate to loading a properties file from an example class named TestLoadProperties. Case 1: Loading the properties file using ClassLoader InputStream inputStream = TestLoadProperties.class.getClassLoader() .getResourceAsStream("A.config"); properties.load(input...
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How do I verify a method was called exactly once with Moq?

...add method is called, it calls the print method once. Here is how we would test this: public interface IPrinter { void Print(int answer); } public class ConsolePrinter : IPrinter { public void Print(int answer) { Console.WriteLine("The answer is {0}.", answer); } } public ...
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Hide options in a select list using jQuery

... Here is an answer that works cross browser - with an example here - I've tested in IE6-9, Chrome and FF – Tr1stan Dec 7 '11 at 8:43 ...
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Better way to cast object to int

... Use Int32.TryParse as follows. int test; bool result = Int32.TryParse(value, out test); if (result) { Console.WriteLine("Sucess"); } else { if (value == null) value = ""; Console.WriteLine("Failure"); } ...
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How do I create a Java string from the contents of a file?

...or the encodings required of all Java runtimes: String content = readFile("test.txt", StandardCharsets.UTF_8); The platform default is available from the Charset class itself: String content = readFile("test.txt", Charset.defaultCharset()); Note: This answer largely replaces my Java 6 version. Th...
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What is __pycache__?

... hidden bytecode files. On Windows the equivalent command might be (not tested, batch script welcome): dir * /s/b | findstr __pycache__ | attrib +h +s +r Which is same as going through the project hiding folders using right-click > hide... Running unit tests is one scenario (more in comm...
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On design patterns: When should I use the singleton?

... A print spooler does not meet the criteria. You may want a test print spooler that doesn't actually print, for testing. – user253751 Jul 1 at 15:09 add a comme...
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How to determine equality for two JavaScript objects?

...ense requirements and move on. It's by far the most comprehensive equality test mentioned on stackoverflow. – Dale Anderson Sep 7 '12 at 10:15 7 ...