PowerShell - Working with Objects
What will be the output of this PowerShell code?
$arr = @()
$arr += 10
$arr += 20
$arr.Length
What will be the output of this PowerShell code?
medium📝 Command Output Q5 of 15
Step-by-Step Solution
Solution:
Step 1: Understand array additions
Starting with empty array, adding two elements increases length to 2.Step 2: Check length property
$arr.Length returns the number of elements, which is 2 after additions.Final Answer:
2 -> Option BQuick Check:
Array length after 2 adds = 2 [OK]
Quick Trick: Length shows count of elements in array [OK]
Common Mistakes:
- Confusing length with last element value
- Expecting length to be sum of elements
- Assuming empty array length is 1
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