**Swift Operator**: In this tutorial, you’ll learn everything about various types of operators in the Swift programming language, their syntax, and how to use them with examples.

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## What are the Operators in Swift?

Operators are special symbols or phrases that programmers use to check, join, or change values. For instance, the multiplication operator (*) multiplies two numbers together. Another complex example incorporates the logical AND operator && (as in if username && password) and the increment operator ++i, which is a shortcut to increase the value of I by 1. Swift supports most standard C operators and eliminates several common coding errors.

Operators are special symbols that perform operations on variables and values. For instance,

print(5 + 6) // 11

Here, + is an operator that adds two numbers: 5 and 6.

## Types of Operators

Here’s a list of various sorts of Swift operators that you will learn in this tutorial.

- Arithmetic operators
- Assignment Operators
- Comparison Operators
- Logical Operators
- Bitwise Operators
- Other Operators

## 1. Swift Arithmetic Operator

Arithmetica operator is used to performing mathematical operations like addition, subtraction, multiplication, and so forth For instance,

var sub = 10 - 5 // 5

Here, – is an arithmetic operator that subtracts two values or variables.

Operator | Operation | Example |

+ | Addition | 5 + 2 = 7 |

– | Subtraction | 4 – 2 = 2 |

* | Multiplication | 2 * 3 = 6 |

/ | Division | 4 / 2 = 2 |

% | Modulo | 5 % 2 = 1 |

## Example 1: Arithmetic Operators in Swift

var a = 7 var b = 2 // addition print (a + b) // subtraction print (a - b) // multiplication print (a * b)

**Output**

9 5 14

In the above example, we have used

- + to add a and b
- – to subtract b from a
- * to multiply a and b

### / Division Operator

The / operator performs division between two numbers. In any case, if two numbers are integers, we will just get the quotient. For instance,

// returns quotient only 7 / 2 = 3

On the off chance that we use the / operator with floating-point numbers, we will get the actual outcome. For instance,

// perform division 7.0 / 3.0 = 3.5

### % Modulo Operator

The modulo operator % computes the remainder. For instance,

print(9 % 4) // 1

Note:The % operator can only be used with integers.

## 2. Swift Assignment Operators

Assignment operators are used to assign values to variables. For instance,

// assign 5 to x var x = 5

Here, = is an assignment operator that assigns 5 to x. Here’s a list of various assignment operators accessible in Swift.

Operator | Name | Example |

= | Assignment Operator | a = 7 |

+= | Addition Assignment | a += 1 // a = a + 1 |

-= | Subtraction Assignment | a -= 3 // a = a – 3 |

*= | Multiplication Assignment | a *= 4 // a = a * 4 |

/= | Division Assignment | a /= 3 // a = a / 3 |

%= | Remainder Assignment | a %= 10 // a = a % 5 |

## Example 2: Assignment Operators

// assign 10 to a var a = 10 // assign 5 to b var b = 5 // assign the sum of a and b to a a += b // a = a + b print(a)

**Output**

15

## 3. Swift Comparison Operators

Comparison operators compare two values/variables and return a boolean outcome: true or false. For instance,

var a = 5, b =2 print (a > b) // true

Here, the > comparison operator is used to compare whether a is greater than b or not.

Operator | Meaning | Example |
---|---|---|

`==` | Is Equal To | `3 == 5` gives us false |

`!=` | Not Equal To | `3 != 5` gives us true |

`>` | Greater Than | `3 > 5` gives us false |

`<` | Less Than | `3 < 5` gives us true |

`>=` | Greater Than or Equal To | `3 >= 5` give us false |

`<=` | Less Than or Equal To | `3 <= 5` gives us true |

### Example 3: Comparison Operators

var a = 5, b = 2 // equal to operator print(a == b) // not equal to operator print(a != b) // greater than operator print(a > b) // less than operator print(a < b) // greater than or equal to operator print(a >= b) // less than or equal to operator print(a <= b)

**Output**

false true true false true false

Note:Comparison operators are used in decision-making and loops. We’ll discuss more of the comparison operator in later tutorials.

## 4. Swift Logical Operator

Logical operators are used to checking whether an expression is true or false. They are used in decision-making. For instance,

var a = 5, b = 6 print((a > 2) && (b >= 6)) // true

Here, && is the logical operator AND. Since both a > 2 and b >= 6 are true, the result is true.

Operator | Example | Meaning |
---|---|---|

`&&` | a && b | Logical AND:`true` only if both the operands are `true` |

`||` | a || b | Logical OR:`true` if at least one of the operands is `true` |

`!` | !a | Logical NOT:`true` if the operand is `false` and vice-versa. |

### Example 4: Logical Operators

// logical AND print(true && true) // true print(true && false) // false // logical OR print(true || false) // true // logical NOT print(!true) // false

**Output**

true false true false

## 5. Swift Bitwise Operators

In Swift, bitwise operators are used to perform operations on individual pieces.

Operator | Description |

& | Binary AND |

| | Binary OR |

^ | Binary XOR |

~ | Binary One’s Complement |

<< | Binary Shift Left |

>> | Binary Shift Right |

Bitwise operators are rarely used in everyday programming.

## 6. Other Swift Operators

Bitwise administrators are seldom utilized in ordinary programming.

Here’s a list of different operators accessible in Swift. We’ll learn more about these operators in later tutorials

Operator | Description | Example |

? : | Ternary Operator – returns value based on the condition | (5 > 2) ? “Success” : “Error” // Success |

?? | Nil-Coalescing Operator – checks whether an optional contains a value or not | number ?? 5 |

… | Range Operator – defines range containing values | 1…3 // range containing values 1,2,3 |

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