[Solved] Given the following code:$a = 1, 2, 3, 4$b = 3, 4, 5, 6Compare-Object -ReferenceObject $a -DifferenceObject $bWhat is the output? | PowerShell

PowerShell - Working with Objects

Given the following code:

$a = 1, 2, 3, 4
$b = 3, 4, 5, 6
Compare-Object -ReferenceObject $a -DifferenceObject $b

What is the output?

A3 and 4 with SideIndicator '<=', 5 and 6 with SideIndicator '=>'

B1, 2, 3, 4, 5, 6 all with SideIndicator '=='

C1 and 2 with SideIndicator '<=', 5 and 6 with SideIndicator '=>'

DNo output because all items match

Step-by-Step Solution

Solution:

Step 1: Identify unique items in each array
$a has 1, 2 unique; $b has 5, 6 unique; 3 and 4 are common.
Step 2: Understand SideIndicator meaning
Items only in $a show '<='; items only in $b show '=>'.
Final Answer:
1 and 2 with SideIndicator '<=', 5 and 6 with SideIndicator '=>' -> Option C
Quick Check:
Unique items show with correct SideIndicator [OK]

Quick Trick: SideIndicator '<=' means only in ReferenceObject [OK]

Common Mistakes:

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