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Pointer to class data member “::*”
...next_ptr) { }
void add(E &e) {
// access its next pointer by the member pointer
e.*next_ptr = head;
head = &e;
}
E * head;
E *E::*next_ptr;
};
int main() {
List<apple> lst(&apple::next);
apple a;
lst.add(a);
}
...
`elif` in list comprehension conditionals
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Android update activity UI from service
...ty it should assume that there are no outstanding requests being processed by the Service.
– Clyde
Apr 29 '16 at 20:36
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show 18 more commen...
How to get a subset of a javascript object's properties
...ish what everyone else was recommending underscore/lodash for 2 years ago, by using Array.prototype.reduce.
var subset = ['color', 'height'].reduce(function(o, k) { o[k] = elmo[k]; return o; }, {});
This approach solves it from the other side: rather than take an object and pass property names to...
git selective revert local changes from a file
... -i <file>
Then throw away the changes that you don't want to keep by checking out the index version:
git checkout -- <file>
Then unstage the changes if you don't want them staged yet:
git reset -- <file>
This recipe only reverts selected changes to the file (or files that ...
How to add “active” class to Html.ActionLink in ASP.NET MVC
...
I manged to do this by adding a view bag parameter in asp.net mvc. Here what have i done
Added ViewBag.Current = "Scheduler"; like parameter in each page
In layout page
<ul class="nav navbar-nav">
<li class="@(ViewBag.Current ==...
How do I detect when someone shakes an iPhone?
...UIView (even system views) into a view that can get the shake event simply by subclassing the view with only these methods (and then selecting this new type instead of the base type in IB, or using it when allocating a view).
In the view controller, you want to set this view to become first respond...
What is the syntax to insert one list into another list in python?
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Is git not case sensitive?
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How do I write data into CSV format as string (not file)?
...e details need to be changed a bit for Python 2:
>>> output = io.BytesIO()
>>> writer = csv.writer(output)
>>> writer.writerow(csvdata)
57L
>>> output.getvalue()
'1,2,a,"He said ""what do you mean?""","Whoa!\nNewlines!"\r\n'
...