[Solved] Find the problem in this function:function AddNumbers { param([int]$a = 1, [int]$b) $a + $b }What happens if you call AddNumbers without arguments? | PowerShell

PowerShell - Functions

Find the problem in this function:

function AddNumbers { param([int]$a = 1, [int]$b) $a + $b }

What happens if you call AddNumbers without arguments?

AError because parameter 'b' has no default and is missing

BReturns 1 because 'a' defaults to 1 and 'b' is null

CReturns 0 because both parameters default to 0

DReturns sum of 1 and 0

Step-by-Step Solution

Solution:

Step 1: Check parameters and defaults
Parameter 'a' has default 1; 'b' has no default.
Step 2: Call function without arguments
Missing 'b' causes error because it is required.
Final Answer:
Error because parameter 'b' has no default and is missing -> Option A
Quick Check:
Required params missing cause error [OK]

Quick Trick: All non-default params must be passed or error occurs [OK]

Common Mistakes:

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