Question

In an example I saw these operators (|= and &=) but it wasn’t explained.
I was looking on Google about it, but I found only results related to the “classic” = operator.
So I would like to know what are these operators doing. Can somebody explain it to me ?

Answer 1

They are simply shorthand assignments like +=. The following are equivalent:

s |= t;
s = s | t;

And these are also equivalent.

s &= t;
s = s & t;

For more information on those operators, you can see the MSDN Docs on | and & Operator.