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What does the caret operator (^) in Python do?
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It's a bitwise m>X m>OR (em>x m>clusive OR).
It results to true if one (and only one) of the operands (evaluates to) true.
To demonstrate:
>>> 0^0
0
>>> 1^1
0
>>> 1^0
1
>>> 0^1
1
To em>x m>plain one of your own em>x m>a...
How to convert a negative number to positive?
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There's also mam>x m>(n, -n) (just another alternative :)
– tzot
Nov 2 '10 at 18:18
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Python __str__ versus __unicode__
...d method -- it returns characters. The names are a bit confusing, but in 2.m>x m> we're stuck with them for compatibility reasons. Generally, you should put all your string formatting in __unicode__(), and create a stub __str__() method:
def __str__(self):
return unicode(self).encode('utf-8')
In 3...
What do all of Scala's symbolic operators mean?
Scala syntam>x m> has a lot of symbols. Since these kinds of names are difficult to find using search engines, a comprehensive list of them would be helpful.
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Replace a value if null or undefined in JavaScript
...ilter2 = options.filters[1] || ''; // is ''
That can be accessed by indem>x m>.
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Does Ruby regular em>x m>pression have a not match operator like “!~” in Perl?
I just want to know whether ruby regem>x m> has a not match operator just like !~ in perl. I feel it's inconvenient to use (?!m>x m>m>x m>m>x m>) or (?<!m>x m>m>x m>m>x m>m>x m>) because you cannot use regem>x m> patterns in the m>x m>m>x m>m>x m> part.
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Copy file remotely with PowerShell
...'s much easier this way.
Copy-Item -Path \\serverb\c$\programs\temp\test.tm>x m>t -Destination \\servera\c$\programs\temp\test.tm>x m>t;
By using UNC paths instead of local filesystem paths, you help to
ensure that your script is em>x m>ecutable from any client system with
access to those UNC paths. If ...
How do I create a right click contem>x m>t menu in Java Swing?
I'm currently creating a right-click contem>x m>t menu by instantiating a new JMenu on right click and setting its location to that of the mouse's position... Is there a better way?
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Clean ways to write multiple 'for' loops
...ns, we usually need to write a for loop for each of its dimensions. For em>x m>ample:
16 Answers
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What's the idiomatic syntam>x m> for prepending to a short python list?
...the obvious choice for adding to the end of a list. Here's a reasonable em>x m>planation for the missing list.prepend() . Assuming my list is short and performance concerns are negligible, is
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