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C++ equivalent of Java's toString?
...t; ")";
}
This way you can output instances of your class on streams:
A x = ...;
std::cout << x << std::endl;
In case your operator<< wants to print out internals of class A and really needs access to its private and protected members you could also declare it as a friend func...
Can a constructor in Java be private?
...e it private, but then your remaining constructors delegate to it.
As an example of delegating constructors, the following class allows you to save a value and a type, but it only lets you do it for a subset of types, so making the general constructor private is needed to ensure that only the permi...
Add comma to numbers every three digits
...
@Paul Creasey had the simplest solution as the regex, but here it is as a simple jQuery plugin:
$.fn.digits = function(){
return this.each(function(){
$(this).text( $(this).text().replace(/(\d)(?=(\d\d\d)+(?!\d))/g, "$1,") );
})
}
You could then use it l...
Overlaying histograms with ggplot2 in R
...stogram(data = highf0, fill = "green", alpha = 0.2) +
Here's a concrete example with some output:
dat <- data.frame(xx = c(runif(100,20,50),runif(100,40,80),runif(100,0,30)),yy = rep(letters[1:3],each = 100))
ggplot(dat,aes(x=xx)) +
geom_histogram(data=subset(dat,yy == 'a'),fill = "red",...
Static/Dynamic vs Strong/Weak
... ++ for (roughly) single line definitions.
– JamesFaix
Jan 8 '16 at 2:26
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show 6 more comments
...
load scripts asynchronously
... t;
r = false;
s = document.createElement('script');
s.type = 'text/javascript';
s.src = src;
s.onload = s.onreadystatechange = function() {
//console.log( this.readyState ); //uncomment this line to see which ready states are called.
if ( !r && (!this.readyState || thi...
How do I check if the mouse is over an element in jQuery?
...e data.
Remove the data on callback of the fadeout.
It is actually less expensive to use mouseenter/mouseleave because they do not fire for the menu when children mouseover/mouseout fire.
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In Python, when should I use a function instead of a method?
...: pass
def crap(self) : pass
def die(self)
....
In the context of the "objects are real things" analogy, it is "correct" to add a class method for anything which the object can do. So say I want to kill off a duck, do I add a
.kill() to the duck? No... as far as I know animals do not ...
How to edit incorrect commit message in Mercurial? [duplicate]
...lover disasters is to perform a simple change (add or remove spacing) and explain your mistake in the next commit message.
– Ryan
Aug 16 '11 at 0:33
...
Outputting data from unit test in python
...ttest module), is it possible to output data from a failed test, so I can examine it to help deduce what caused the error? I am aware of the ability to create a customized message, which can carry some information, but sometimes you might deal with more complex data, that can't easily be represented...