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Calculating text width
...xtWidth = function(){
var html_org = $(this).html();
var html_calc = '<span>' + html_org + '</span>';
$(this).html(html_calc);
var width = $(this).find('span:first').width();
$(this).html(html_org);
return width;
};
...
Create instance of generic type whose constructor requires a parameter?
...
This one worked out fine. There's also a CreateInstance<T>() procedure, but that doesn't have an overload for parameters for some rason..
– Boris Callens
Apr 12 '09 at 11:29
...
Is the practice of returning a C++ reference variable evil?
...nction, use a smart pointer (or in general, a container):
std::unique_ptr<int> getInt() {
return std::make_unique<int>(0);
}
And now the client stores a smart pointer:
std::unique_ptr<int> x = getInt();
References are also okay for accessing things where you know the life...
How to copy a java.util.List into another java.util.List
I have a List<SomeBean> that is populated from a Web Service. I want to copy/clone the contents of that list into an empty list of the same type. A Google search for copying a list suggested me to use Collections.copy() method. In all the examples I saw, the destination list was supposed t...
How can I delete Docker's images?
... the relevant container and then remove the image:
docker ps
docker stop <containerid>
docker rm <containerid>
docker rmi <imageid>
If you cannnot find container by docker ps, you can use this to list all already exited containers and remove them.
docker ps -a | grep 60afe4036...
Test if characters are in a string
...ingle long string, try finding 1 match in a bunch of shorter strings: vec <- replicate(100000, paste( sample(letters, 10, replace=TRUE), collapse='') ).
– Greg Snow
Apr 12 '12 at 19:52
...
CSS 100% height with padding/margin
...reading "PRO HTML and CSS Design Patterns". The display:block is the default display value for the div, but I like to make it explicit. The container has to be the right type; position attribute is fixed, relative, or absolute.
.stretchedToMargin {
display: block;
position:absolute;
...
How to delete an element from an array in C#
...nt numToRemove = 4;
int numIdx = Array.IndexOf(numbers, numToRemove);
List<int> tmp = new List<int>(numbers);
tmp.RemoveAt(numIdx);
numbers = tmp.ToArray();
Edit: Just in case you hadn't already figured it out, as Malfist pointed out, you need to be targetting the .NET Framework 3.5 in...
How did Google manage to do this? Slide ActionBar in Android application
...a simple adapter
public static class SlideMenuAdapter extends ArrayAdapter<SlideMenu.SlideMenuAdapter.MenuDesc> {
Activity act;
SlideMenu.SlideMenuAdapter.MenuDesc[] items;
class MenuItem {
public TextView label;
public ImageView icon;
}
static class MenuDes...
Ruby custom error classes: inheritance of the message attribute
...age so you don't have to pass it to the constructor:
class MyCustomError < StandardError
attr_reader :object
def initialize(object)
@object = object
end
end
begin
raise MyCustomError.new("an object"), "a message"
rescue MyCustomError => e
puts e.message # => "a message"
p...