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How do you convert a byte array to a hexadecimal string, and vice versa?

...t a String. String myValue = 10.ToString("X"); myValue is "A" not "0A". Now go read that string back into bytes, oops you broke it. – 00jt Jan 30 '13 at 19:25 ...
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Trim spaces from end of a NSString

...WhiteSpace((__bridge CFMutableStringRef) stringToTrim); //stringToTrim is now "i needz trim" share | improve this answer | follow | ...
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Ant: How to execute a command for each file in directory?

... or type foreach". If I understand correctly, this means, foreach is an unknown keyword. – ivan_ivanovich_ivanoff Sep 23 '09 at 19:48 4 ...
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Does Swift have documentation generation support?

...d in the Quick Help Inspector ⌥⌘2). Symbol documentation comments are now based on the same Markdown syntax used by rich playground comments, so a lot of what you can do in playgrounds can now be used directly in source code documentation. For full details of the syntax, see Markup Formatting ...
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How to make UIButton's text alignment center? Using IB

... For those of you who are now using iOS 6 or higher, UITextAlignmentCenter has been deprecated. It is now NSTextAlignmentCenter EXAMPLE: mylabel.textAlignment = NSTextAlignmentCenter; Works perfectly. ...
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Nullable type as a generic parameter possible?

...val = reader[columnName]; return (val == DBNull.Value ? null : val); } Now you don't need the explicit type hinting on the RHS: int? value = myDataReader.GetNullableValue("MyColumnName"); In fact, you don't need it anywhere! var value = myDataReader.GetNullableValue("MyColumnName"); value will...
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Fast permutation -> number -> permutation mapping algorithms

...elements. For the sake of an example, let's say, 7 elements, 1234567. I know there are 7! = 5040 permutations possible of these 7 elements. ...
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Using port number in Windows host file

... @Mat That would be nice, right? I just want others who see this to know to scroll down a little bit and give it a shot. I ended up here when trying to figure out how to map .test domains to my docker images locally on Windows 10, and the netsh answer worked like a charm! ...
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Convert array to JSON

...] which holds a few integers. I've added a few values to the array, but I now need to send this array to a page via jQuery's .get method. How can I convert it to a JSON object for sending? ...
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How to remove the lines which appear on file B from another file A?

...e a set, where there won't be any duplicate values (keys) !($0 in a) we're now in the next file(s), in is a contains test, here it's checking whether current line is in the set we populated in the first step from the first file, ! negates the condition. What is missing here is the action, which by...