what's the difference btw = and ==?

Answer 1

'=' operator is for assigning values
a=2; // a now has a value equal to 2

"==" operator is for checking equality
a==2; // checking if a has a value equal to 2

"==" is a condition and cannot be used independently anywhere. It must have a function assoiciated with it

Answer 2

thank you.

Answer 3

or in simple = is called equal and == is called test for equality.