JSON operations (ConvertFrom-Json, ConvertTo-Json) in PowerShell - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to convert a JSON string to a PowerShell object.

PowerShell

$jsonString = '{"name":"Alice","age":30}'
$obj = $jsonString | [1]

Drag options to blanks, or click blank then click option'

AConvertFrom-Json

BConvertTo-Json

COut-String

DConvertTo-Xml

Attempts:

3 left

💡 Hint

Common Mistakes

Using ConvertTo-Json instead of ConvertFrom-Json.

Trying to use Out-String which just formats output as text.

The ConvertFrom-Json cmdlet converts a JSON string into a PowerShell object.

2fill in blank

medium

Complete the code to convert a PowerShell object to a JSON string.

PowerShell

$obj = @{name='Bob'; age=25}
$jsonString = $obj | [1]

Drag options to blanks, or click blank then click option'

AOut-File

BConvertFrom-Json

CConvertTo-Json

DConvertTo-Csv

Attempts:

3 left

💡 Hint

Common Mistakes

Using ConvertFrom-Json which does the opposite conversion.

Using Out-File which writes to a file, not convert to JSON.

The ConvertTo-Json cmdlet converts a PowerShell object into a JSON string.

3fill in blank

hard

Fix the error in the code to correctly convert JSON string to object.

PowerShell

$jsonString = '{"city":"Paris","population":2140000}'
$obj = [1] $jsonString

Drag options to blanks, or click blank then click option'

AGet-Content

BConvertFrom-Json

COut-String

DConvertTo-Json

Attempts:

3 left

💡 Hint

Common Mistakes

Using ConvertTo-Json instead of ConvertFrom-Json.

Trying to use Get-Content which reads files, not convert JSON strings.

To convert JSON text to an object, use ConvertFrom-Json. Using ConvertTo-Json here is wrong.

4fill in blank

hard

Fill both blanks to create a JSON string from an object and then convert it back to an object.

PowerShell

$obj = @{fruit='Apple'; color='Red'}
$json = $obj | [1]
$newObj = $json | [2]

Drag options to blanks, or click blank then click option'

AConvertTo-Json

BConvertFrom-Json

COut-String

DGet-Content

Attempts:

3 left

💡 Hint

Common Mistakes

Swapping the cmdlets order.

Using Out-String which does not convert JSON.

First, convert the object to JSON with ConvertTo-Json. Then convert JSON back to object with ConvertFrom-Json.

5fill in blank

hard

Fill all three blanks to convert a JSON string to object, modify it, and convert back to JSON.

PowerShell

$jsonString = '{"animal":"Dog","age":5}'
$obj = $jsonString | [1]
$obj.age = $obj.age + 1
$newJson = $obj | [2]
Write-Output [3]

Drag options to blanks, or click blank then click option'

AConvertFrom-Json

BConvertTo-Json

C$newJson

D$obj

Attempts:

3 left

💡 Hint

Common Mistakes

Using ConvertTo-Json first instead of ConvertFrom-Json.

Outputting the object instead of the JSON string.

Convert JSON string to object with ConvertFrom-Json, then back to JSON with ConvertTo-Json. Finally, output the new JSON string.