(PowerShell) JSON: Nested Array

Here we have a JSON object that contains nested arrays. This example demonstrates how to access the contents of the nested arrays.

{
 "numbers" : [ 
    ["even", 2, 4, 6, 8], 
    ["prime", 2, 3, 5, 7, 11, 13] 
  ] }

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

$json = New-Object Chilkat.JsonObject

# This is the above JSON with whitespace chars removed (SPACE, TAB, CR, and LF chars).
# The presence of whitespace chars for pretty-printing makes no difference to the Load
# method. 
$jsonStr = "{ `"numbers`" : [ [`"even`", 2, 4, 6, 8], [`"prime`", 2, 3, 5, 7, 11, 13] ] }"

$success = $json.Load($jsonStr)
if ($success -ne $true) {
    $($json.LastErrorText)
    exit
}

# Get the value of the "numbers" object, which is an array that contains JSON arrays.
$outerArray = $json.ArrayOf("numbers")
if ($json.LastMethodSuccess -eq $false) {
    $("numbers array not found.")
    exit
}

$numArrays = $outerArray.Size

for ($i = 0; $i -le $numArrays - 1; $i++) {

    $innerArray = $outerArray.ArrayAt($i)

    # The first item in the innerArray is a string
    $($innerArray.StringAt(0) + ":")

    $numInnerItems = $innerArray.Size

    for ($j = 1; $j -le $numInnerItems - 1; $j++) {

        $("  " + $innerArray.IntAt($j))

    }

}