You have an object $obj with a property Values as an array. You want to add a ScriptMethod SumValues that returns the sum of all elements in Values. Which code correctly implements this?

hard📝 Application Q9 of 15

PowerShell - Working with Objects

You have an object $obj with a property Values as an array. You want to add a ScriptMethod SumValues that returns the sum of all elements in Values. Which code correctly implements this?

A$obj | Add-Member -MemberType ScriptMethod -Name SumValues -Value { ($this.Values | Measure-Object -Sum).Sum }

B$obj | Add-Member -MemberType ScriptProperty -Name SumValues -Value { ($this.Values | Measure-Object -Sum).Sum }

C$obj | Add-Member -MemberType ScriptMethod -Name SumValues -Value { $this.Values.Sum() }

D$obj | Add-Member -MemberType Property -Name SumValues -Value ($this.Values | Measure-Object -Sum).Sum

Step-by-Step Solution

Solution:

Step 1: Identify correct MemberType for method
SumValues is a method that calculates sum dynamically, so MemberType must be ScriptMethod.
Step 2: Use Measure-Object to sum array
Using ($this.Values | Measure-Object -Sum).Sum correctly sums array elements inside script block.
Final Answer:
$obj | Add-Member -MemberType ScriptMethod -Name SumValues -Value { ($this.Values | Measure-Object -Sum).Sum } -> Option A
Quick Check:
ScriptMethod with Measure-Object sums array = B [OK]

Quick Trick: Use Measure-Object inside ScriptMethod to sum arrays [OK]

Common Mistakes:

Using ScriptProperty instead of ScriptMethod
Calling .Sum() method which doesn't exist on array
Adding static property instead of method

Master "Working with Objects" in PowerShell

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Time

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More PowerShell Quizzes

You have an object $obj with a property Values as an array. You want to add a ScriptMethod SumValues that returns the sum of all elements in Values. Which code correctly implements this?

Step 1: Identify correct MemberType for method

Step 2: Use Measure-Object to sum array

Final Answer:

Quick Check:

Want More Practice?