Swift Operators - Part Three

Question 1

Operators

Answer 1

An operator is a special symbol or phrase that you use to check, change or combine values.

Question 2

3 Kinds of Operators

Answer 2

Unary, Binary, Ternary

Question 3

Binary Operators

Answer 3

Operate on Two Targets (1 + 1): the two “1s” are Operands

Question 4

Expression

Answer 4

A combination of an operator with Operands is called an Expression.

Question 5

Binary Operators

Answer 5

Addition: +

Subtraction: -

Division: /

Multiplication: *

Remainder: %

Question 6

Long Division - Remainder (Modulo Operator).

Answer 6

Question 7

Assignment Operator (=)

Answer 7

The assignment operator denoted by the equal to symbol initializes or updates the value of one operand.

The operand on the left hand side is updated by the value on the right-hand side.

Question 8

Comparison Operators:

Answer 8

Equal To: ==

Not Equal To: !=

Greater Than: >

Lesser Than: <

Question 9

Operator Precedence

Answer 9

Left to Right:
Higher Precedence Level (150):

Multiplication: *

Division: /

Remainder: %

Precedence Level (140):

Addition: +

Subtraction: -

Question 10

Unary Operators

Answer 10

Work with one operand only.

NOTE:

Always place the increment operator to the left of the operand.