How to create a flow manipulator?

Question

C++ / C#

We need a simple example of a manipulator that outputs something to the stream, for example:
cout << text;

Answer 1

You can declare a manipulator like this:

ostream& tab(ostream & output)
{
    return output<< '\t';
}

Use like this: i.e. we just pass a function to the thread. This works because the basic_ostream class template has the following overload of the << operator:
Taken from here: https: //stackoverflow.com/questions/284188/how-do-the-stream-manip...

Answer 2

codepen.io/anon/pen/yjpzm

Answer 3

If you can't find it, then take part of the layout of the site.
F12 developer console.

Answer 4

If I'm not mistaken, then you make another block, hide it with display:none and when you hover it is shown, the script seems to be needed for this effect.