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Why does `a == b or c or d` always evaluate to True?
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Simple engineering problem, let's simply it a bit further.
In [1]: a,b,c,d=1,2,3,4
In [2]: a==b
Out[2]: False
But, inherited from the language C, Python evaluates the logical value of a non zero integer as True.
In [11]: if 3:
...: print ("yey")
...:
yey
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chart.js load totally new data
...height
var x = canvas.width/2;
var y = canvas.height/2;
ctx.font = '10pt Verdana';
ctx.textAlign = 'center';
ctx.fillText('This text is centered on the canvas', x, y);
};
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Order discrete x scale by frequency/value
...eom="bar")
Edit:
To have the tallest bar at the left, you have to use a bit of a kludge:
qplot(reorder(factor(cyl),factor(cyl),function(x) length(x)*-1),
data=mtcars,geom="bar")
I would expect this to also have negative heights, but it doesn't, so it works!
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What characters are forbidden in Windows and Linux directory names?
..., LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9
(both on their own and with arbitrary file extensions, e.g. LPT1.txt).
Other rules
Windows:
Filenames cannot end in a space or dot.
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Protecting executable from reverse engineering?
...te the modified code much more often than you modify it, it may still be a win).
– jilles
Jun 26 '11 at 12:55
2
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Why does fatal error “LNK1104: cannot open file 'C:\Program.obj'” occur when I compile a C++ project
...chase to 30 second one :)
– jb.
May 10 '09 at 21:04
10
I had the same problem. If your Linker is ...
Can I protect against SQL injection by escaping single-quote and surrounding user input with single-
... unescaped and may be indirectly SQL-injected. See
String truncation - (a bit more complicated) - Scenario is you have two fields, say a username and password, and the SQL concatenates both of them. And both fields (or just the first) has a hard limit on length. For instance, the username is limite...
Causes of getting a java.lang.VerifyError
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answered Mar 25 '10 at 17:40
Kevin PankoKevin Panko
7,57399 gold badges4646 silver badges5757 bronze badges
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Differences between detach(), hide() and remove() - jQuery
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@Kumar's answer is a bit more correct regarding remove() since it isn't removed from the DOM. This has repercussions since complex elements with bound events tend to eat up a lot of browser memory if they're not chewed up by the garbage collector...
Regex to match string containing two names in any order
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Would somebody mind explaining in a bit more detail how this example works?
– bjmc
Jul 7 '14 at 21:37
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