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What is the correct way of using C++11's range-based for?
... the elements
Let's consider a simple example:
vector<int> v = {1, 3, 5, 7, 9};
for (auto x : v)
cout << x << ' ';
The above code prints the elements (ints) in the vector:
1 3 5 7 9
Now consider another case, in which the vector elements are not just simple integers,
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Convert a list of objects to an array of one of the object's properties
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answered Jan 21 '11 at 23:55
BrokenGlassBrokenGlass
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When to use leading slash in gitignore
...red Jul 18 '16 at 10:07
solstice333solstice333
2,2821818 silver badges2020 bronze badges
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Passing HTML to template using Flask/Jinja2
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365
the ideal way is to
{{ something|safe }}
than completely turning off auto escaping.
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How safe is it to store sessions with Redis?
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3 Answers
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What do hjust and vjust do when making a plot using ggplot?
...have the alignment relative to the axis.)
DF <- data.frame(x=LETTERS[1:3],y=1:3)
p <- ggplot(DF, aes(x,y)) + geom_point() +
ylab("Very long label for y") +
theme(axis.title.y=element_text(angle=0))
p1 <- p + theme(axis.title.x=element_text(hjust=0)) + xlab("X-axis at hjust=0")
p...
Creating a JavaScript cookie on a domain and reading it across sub domains
... cannot change path
– Enve
Jan 15 '13 at 10:01
7
@Enve - Browsers treat localhost cookies a bit d...
How can I remove a key and its value from an associative array?
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381
You can use unset:
unset($array['key-here']);
Example:
$array = array("key1" => "value1...
MongoDB: update every document on one field
... document. In the Mongo shell, or with any MongoDB client:
$version >= 3.2:
db.foo.updateMany( {}, <update> )
{} is the condition (the empty condition matches any document)
3.2 > $version >= 2.2:
db.foo.update( {}, <update>, { multi: true } )
{} is the condition (the ...