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grepping using the “|” alternative operator

The following is a sample of a large file named AT5G60410.gff: 5 Answers 5 ...
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What is the difference between exit() and abort()?

... objects though. So A a; void test() { static A b; A c; exit(0); } Will destruct a and b properly, but will not call destructors of c. abort() wouldn't call destructors of neither objects. As this is unfortunate, the C++ Standard describes an alternative mechanism which ensures prope...
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Pandas conditional creation of a series/dataframe column

...here(df['Set']=='Z', 'green', 'red') print(df) yields Set Type color 0 Z A green 1 Z B green 2 X B red 3 Y C red If you have more than two conditions then use np.select. For example, if you want color to be yellow when (df['Set'] == 'Z') & (df['Type'] == ...
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What does “%” (percent) do in PowerShell?

... answered Apr 3 '14 at 19:03 KohlbrrKohlbrr 3,23111 gold badge1717 silver badges2424 bronze badges ...
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in entity framework code first, how to use KeyAttribute on multiple columns

... attributes, for instance: public class MyEntity { [Key, Column(Order=0)] public int MyFirstKeyProperty { get; set; } [Key, Column(Order=1)] public int MySecondKeyProperty { get; set; } [Key, Column(Order=2)] public string MyThirdKeyProperty { get; set; } // other pro...
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Javascript reduce on array of objects

... | edited Aug 30 '17 at 14:05 answered Apr 20 '11 at 14:34 ...
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Java code To convert byte to Hexadecimal

... byte[] bytes = {-1, 0, 1, 2, 3 }; StringBuilder sb = new StringBuilder(); for (byte b : bytes) { sb.append(String.format("%02X ", b)); } System.out.println(sb.toString()); // prints "FF 00 01 02 03 " See also java...
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how can I see what ports mongo is listening on from mongo shell?

..., "--dbpath", "/data/test/r1", "--port", "30001" ], "parsed" : { "dbpath" : "/data/test/r1", "port" : 30001, "replSet" : "test", "rest" : true }, "ok" : 1 } If you have not passed specific port options like the ones ab...
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How can I filter a Django query with a list of values?

... FlipperPA 10k33 gold badges2525 silver badges4949 bronze badges answered Feb 16 '12 at 3:05 charlaxcharlax ...
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XmlWriter to Write to a String Instead of to a File

... 220 You need to create a StringWriter, and pass that to the XmlWriter. The string overload of the X...