Swift Operators - Basic Part 1

Assignment Operators

• It initialize or updates the value of a variable with the value of b (a=b)
• It also supports tuples ((x,y) = (1,2) x -1 and y-2)
• If x= y {} this is invalid, reason it does not return anything, it just assigns. 

Arithmatic Operators

• Addition (+)
• Subtraction (-)
• Multipication (*)
• Divisions(/)

Reminder (Modulas) Operator (%) 

• 7 % 3 = 1  (3*2)+1 = 7 
• a % b means (b * multipier) + reminder = a 

Unary Minus and Unary Plus:

•   - a or + a

     Example: a = 3, then -a = -3 and +a = -3

                    +a does not change anything

Compound Assignment opertors

• It combines assignment operator with another operations.

          Example a += 2 => a = a+2