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Remove non-utf8 characters from string

...sses all this issues. It´s called Encoding::toUTF8(). You dont need to know what the encoding of your strings is. It can be Latin1 (ISO8859-1), Windows-1252 or UTF8, or the string can have a mix of them. Encoding::toUTF8() will convert everything to UTF8. I did it because a service was giving m...
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Listen for key press in .NET console app

... but if you do this instead of readLine() you lose the awesome feature of having history recall by pressing "up" key. – v.oddou Jul 1 '15 at 8:17 ...
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Annotating text on individual facet in ggplot2

...p + geom_text(data = ann_text,label = "Text") It should work without specifying the factor variable completely, but will probably throw some warnings: share | improve this answer | ...
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Is the size of C “int” 2 bytes or 4 bytes?

... I know it's equal to sizeof(int). The size of an int is really compiler dependent. Back in the day, when processors were 16 bit, an int was 2 bytes. Nowadays, it's most often 4 bytes on a 32-bit as well as 64-bit systems. Stil...
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File Upload without Form

... IMHO this is the best solution, however another choice is to use an <iframe inside you can do a regular post back – John Smith Nov 12 '14 at 16:41 ...
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What Makes a Good Unit Test? [closed]

... in the code, ensure that you test all key paths and scenarios.. Use tools if you must to know untested regions Repeatable: Tests should produce the same results each time.. every time. Tests should not rely on uncontrollable params. Independent: Very important. Tests should test only one thing a...
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Get/pick an image from Android's built-in Gallery app programmatically

... // this is the action code we use in our intent, // this way we know we're looking at the response from our own action private static final int SELECT_PICTURE = 1; private String selectedImagePath; public void onCreate(Bundle savedInstanceState) { super.onCreate(saved...
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Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]

...ff, if you're starting a new project, go with Entity Framework ("EF") - it now generates much better SQL (more like Linq to SQL does) and is easier to maintain and more powerful than Linq to SQL ("L2S"). As of the release of .NET 4.0, I consider Linq to SQL to be an obsolete technology. MS has bee...
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Scala @ operator

... o match { case Some(x) => println(x) case None => } But what if you wanted not the content of Some, but the option itself? That would be accomplished with this: o match { case x @ Some(_) => println(x) case None => } Note that @ can be used at any level, not just at the to...
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scala vs java, performance and memory? [closed]

....length()>2 && mapping.get(s) != null) b.add(mapping.get(s)); Now not only did I save the time it took me to type full variable names and curly braces (freeing me to spend 5 more seconds to think deep algorithmic thoughts), but I can also enter my code in obfuscation contests and potent...