What does '==' do?

Answer 1

Well in real world, we compare LHS and RHS with an equal (=) sign. In programming languages, to compare what's on left and right, double equals to (==) sign is used.
Example:
if (2==3)
result: false

While single equal sign is an assignment operator, which assigns the right side value into variable on the left side.
Example:
b = 11
a = b
now the value of a is b, that is 11.

Answer 2

It checks if the two values are the same.

Answer 3

thank you

Answer 4

thanks alot