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not None test in Python [duplicate]

Out of these not None tests. 4 Answers 4 ...
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Binding arrow keys in JS/jQuery

... @NathanArthur Here I found two good online tools to test the keyboard keycodes: keycode.info asquare.net/javascript/tests/KeyCode.html unixpapa.com/js/key.html – Riccardo Volpe Aug 2 '17 at 21:53 ...
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Could not load file or assembly … An attempt was made to load a program with an incorrect format (Sy

... I had this problem running unit tests (xunit) in Visual Studio 2015 and came across the following fix: Menu Bar -> Test -> Test Settings -> Default Processor Architecture -> X64 ...
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How to jump to a particular line in a huge text file?

... I've done some testing here, and setting it to -1 (os default, often 8k, but often hard to tell), seems to be about as fast as it gets. That said, part of that may be that I'm testing on a virtual server. – Oscar Smith...
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PHP: Return all dates between two dates in an array [duplicate]

... inclusive array of the dates between the from and to dates. // could test validity of dates here but I'm already doing // that in the main script $aryRange=array(); $iDateFrom=mktime(1,0,0,substr($strDateFrom,5,2), substr($strDateFrom,8,2),substr($strDateFrom,0,4)); $iDat...
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Any reason not to start using the HTML 5 doctype? [closed]

...'s treated by browsers as HTML. So, really it comes down to using the shortest doctype that triggers standards mode (<!DOCTYPE html>) and using HTML markup that produces the correct result in browsers. The rest is about conforming, validation and markup prerference. With that said, using &l...
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Linux, Why can't I write even though I have group permissions?

...am user el el touch /foobar/test_file //make a new file sudo chown root:www-data /foobar/test_file //User=root group=www-data sudo chmod 474 /foobar/test_file //owner and others get only read, ...
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How do I check if a string is unicode or ascii?

...nicode string may consist of purely characters in the ASCII range, and a bytestring may contain ASCII, encoded Unicode, or even non-textual data. share | improve this answer | ...
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'is' versus try cast with null check

...actually happens below the belt. Take a look at this example: object o = "test"; if (o is string) { var x = (string) o; } This translates to the following IL: IL_0000: nop IL_0001: ldstr "test" IL_0006: stloc.0 // o IL_0007: ldloc.0 // o IL_0008: isinst Syste...
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What does 'synchronized' mean?

...rint(String s) { System.out.println(s+"\n"); } } public class TestThread extends Thread { String name; TheDemo theDemo; public TestThread(String name,TheDemo theDemo) { this.theDemo = theDemo; this.name = name; start(); } @Override public ...