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How to switch position of two items in a Python list?
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404
i = ['title', 'email', 'password2', 'password1', 'first_name',
'last_name', 'next', 'news...
C++ auto keyword. Why is it magic?
...r templates on any compiler that even sort of attempted to implement C++98/03. As such, adding support for auto was apparently fairly easy for essentially all the compiler teams--it was added quite quickly, and there seem to have been few bugs related to it either.
When this answer was originally w...
Extracting Nupkg files using command line
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106
You can also use the NuGet command line, by specifying a local host as part of an install. For ...
Default value to a parameter while passing by reference in C++
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104
You can do it for a const reference, but not for a non-const one. This is because C++ does not ...
How can I check the size of a collection within a Django template?
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MichielB
3,38011 gold badge2424 silver badges3535 bronze badges
answered May 23 '09 at 17:53
Alex MartelliAlex Mar...
How do i put a border on my grid in WPF?
...gt;
<Grid Height="166" HorizontalAlignment="Left" Margin="12,12,0,0" Name="grid1" VerticalAlignment="Top" Width="479" Background="#FFF2F2F2" />
</Border>
</Grid>
This should get you what you're after (though you may want to put a margin on all 4 sides, not just 2...)
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How to fix the aspect ratio in ggplot?
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110
In ggplot the mechanism to preserve the aspect ratio of your plot is to add a coord_fixed() laye...
Is \d not supported by grep's basic expressions?
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rogerdpack
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answered Aug 1 '11 at 16:08
DaenythDaenyth
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PHP regular expressions: No ending delimiter '^' found in
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PHP regex strings need delimiters. Try:
$numpattern="/^([0-9]+)$/";
Also, note that you have a lower case o, not a zero. In addition, if you're just validating, you don't need the capturing group, and can simplify the regex to /^\d+$/.
Example: http://ideone.com/Ec3zh
See also:...
How to count items in a Go map?
...ed from the now-retired SO documentation:
m := map[string]int{}
len(m) // 0
m["foo"] = 1
len(m) // 1
If a variable points to a nil map, then len returns 0.
var m map[string]int
len(m) // 0
Excerpted from Maps - Counting map elements. The original author was Simone Carletti. Attribution det...