Swift Operators Introduction and It’s Importance

A swift operator is also a symbol that helps to perform various logical and mathematical computations. Swift also supports most of the standard C operators.

They are classified into three types:

Unary operators: These operators operate on single operand only. also For example increment operator.

Binary operators: These operators also operate on two operands. For example addition operator.

Ternary operators: These operators also operate on three operands. For example a ? b : c.

Swift Operators

Different operators present in swift are as follows:

• Arithmetic Operator
• Logical Operator
• Assignment Operator
• Comparison Operator
• Bitwise Operator
• Range Operator
• Miscellaneous Operator

Now let us see each type of operator in detail:

1. Swift Arithmetic Operators

These operators are also used to perform mathematical calculations on the operands.

Example:

print(5  +  2)
print(5  –  2)
print(5  *  2)
print(5  /  2)
print(5  %  2)

Output:

7

3

10

2

1

2. Swift Logical Operator

These operators also return Boolean values taking Boolean values as input.

Example:

print(true  &&  true)
print(true  &&  false)
print(true  ||  false)
print(false  ||  false)
print(! false)

Output:

true

false

true

false

true

3. Swift Assignment Operator

These operators are also used to assign values to a variable.

Example:

let a = 5
print (a)
var x = 6
print(x += 3)
print(x -= 3)
print(x *= 3)
print(x /= 3)
print(x %= 3)
print(x &= 3)
print(x |= 3)
print(x ^= 3)
print(x <<= 2)
print(x >>= 2)

Output:

5

9

3

18

2

0

2

7

5

8

1

4. Swift Comparison Operator

These operators help to compare two values and return Boolean values as output.

Example:

print(5  ==  2)
print(5  !=  2)
print(5  >  2)
print(5  <  2)
print (5 >= 5)
print (5  <=  2)

Output:

false

true

true

true

true

false

5. Swift Bitwise Operator

Example:

var a = 8
var b = 7
print(a & b)
print(a | b)
print(a ^ b)
print(~ b)
print(a << 2)
print(a >> 2)

Output:

0

15

15

8

0

2

6. Swift Range Operators

These operators are used as shortcuts to express the range of values.

Example:

for i in 1…4 {
print(i)}
for j in 1. . <4 {
print(j) }
let range = ..<4
print(range.contains(2))

Output:

1

2

3

4

1

2

3

true

7. Swift Miscellaneous Operators

Example:

var a = -3
print(+a)
print(-a)
let b = (6==6) ? “True”: “false”
print(b)

Output:

-3

3

Tru