Ternary operator (PowerShell 7+) - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is the ternary operator in PowerShell 7+?

The ternary operator is a compact way to write an if-else statement in one line. It uses the syntax: condition ? valueIfTrue : valueIfFalse.

beginner

How do you write a ternary operator to check if a number is even or odd in PowerShell?

You can write: $result = ($number % 2 -eq 0) ? 'Even' : 'Odd'. This sets $result to 'Even' if the number is divisible by 2, otherwise 'Odd'.

intermediate

True or False: The ternary operator in PowerShell 7+ can only be used with simple expressions.

False. The ternary operator can be used with any expressions, including complex ones, as long as they return a value.

beginner

What will this PowerShell code output? <br>$age = 20; $status = ($age -ge 18) ? 'Adult' : 'Minor'; $status

It will output Adult because the condition $age -ge 18 (age greater or equal to 18) is true.

beginner

Why use the ternary operator instead of a full if-else statement?

The ternary operator makes code shorter and easier to read when you have simple conditions that assign values based on true or false.

What is the correct syntax of the ternary operator in PowerShell 7+?

A condition : valueIfTrue ? valueIfFalse

B if (condition) {valueIfTrue} else {valueIfFalse}

C condition ? valueIfTrue : valueIfFalse

D condition ? valueIfFalse : valueIfTrue

The ternary operator syntax is condition ? valueIfTrue : valueIfFalse.

What will this output? <br>$x = 5; $y = ($x -gt 10) ? 'Big' : 'Small'; $y

A Big

B 5

C Error

D Small

Since 5 is not greater than 10, the condition is false, so $y is set to 'Small'.

Can the ternary operator be nested in PowerShell 7+?

A Yes, you can nest ternary operators.

B No, nesting is not allowed.

C Only with special syntax.

D Only in PowerShell 5.1.

You can nest ternary operators to handle multiple conditions in PowerShell 7+.

Which PowerShell version introduced the ternary operator?

A PowerShell 5.1

B PowerShell 7

C PowerShell 6

D PowerShell 4

The ternary operator was introduced in PowerShell 7.

What does this code do? <br>$result = ($true) ? 'Yes' : 'No'

A Sets $result to 'Yes'

B Sets $result to 'No'

C Throws an error

D Sets $result to $true

Since the condition is true, $result is set to 'Yes'.

Explain how the ternary operator works in PowerShell 7+ and give a simple example.

Think of it as a short if-else that picks one of two values.

Describe a situation where using the ternary operator makes your PowerShell script easier to read.

When you want to choose between two values quickly.