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R apply function with multiple parameters
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Just pass var2 as an extra argument to one of the apply functions.
mylist <- list(a=1,b=2,c=3)
myfxn <- function(var1,var2){
var1*var2
}
var2 <- 2
sapply(mylist,myfxn,var2=var2)
This passes the same var2 to every call of myfxn. If...
How does one make an optional closure in swift?
...(), onReject: Optional<()->()>) { ` then you would not need the extra (), though IMO the ()? is prettier. Also you can make it even prettier with a typealias like typealias RejectHandler = () -> () func then(onFulfilled: ()->(), onReject: RejectHandler?) {
–...
How to use base class's constructors and assignment operator in C++?
...No operator=() defined
};
class Derived : public ImplicitBase {
const char* name_;
public:
Derived& operator=(const Derived& d)
{
ImplicitBase::operator=(d); // Call compiler generated operator=
name_ = strdup(d.name_);
return *this;
}
};
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How to add a footer to a UITableView in Storyboard
... Thanks for the answer. It saved me a day. I was working on adding an extra cell with Button on it, and was trapped with CoreData failure when updating the tableView. I didn't know that it could be done like this. Such an easy and clean solution for me.
– John
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Using :after to clear floating elements
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display: table can add extra spacing; I use display: block instead
– The Cog
Feb 15 '16 at 23:12
add a comment
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Getting distance between two points based on latitude/longitude
...nit.MILES)
>> 243.71201856934454 # in miles
# you can also use the string abbreviation for units:
haversine(lyon, paris, unit='mi')
>> 243.71201856934454 # in miles
haversine(lyon, paris, unit=Unit.NAUTICAL_MILES)
>> 211.78037755311516 # in nautical miles
They claim to have ...
How can I echo HTML in PHP?
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@MhdSyrwan just random chars, you can read more here php.net/manual/en/…
– lfx
Sep 23 '11 at 18:22
1
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emacs zoom in/zoom out
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This doesn't work for me, even with (setq w32-pass-extra-mouse-buttons-to-system t). Any ideas? (I'm on Windows 7.)
– Brady Trainor
Sep 26 '14 at 3:34
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Why do access tokens expire?
...red only via TLS (and your first bullet point does not apply) is there any extra security? 2) Assuming that all this holds in our scenario (only TLS, no self-encoded unrevokable tokens), is it okay to issue access tokens that don't expire?
– Thilo
Jul 6 '12 at ...
What does “Splats” mean in the CoffeeScript tutorial?
...s object in such a way that the splatted argument becomes an array of all "extra" arguments. The most trivial example is
(args...) ->
In this case, args will simply be an array copy of arguments. Splatted arguments can come either before, after, or between standard arguments:
(first, rest...)...