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PowerShell : PSObject を ConvertTo-Json した際の Object 順を制御する。

Last updated at Posted at 2019-02-17

psobject を ConvertTo-Json で JSON 化した際に object の並びを書いた通りに出来るかという話。

Sample1.ps1
$ob = New-Object -TypeName psobject -Property @{
  FOO = 0
  BAR = 0
  BAZ = 0
  PIYO = 0
}
ConvertTo-Json $ob


{
 "BAZ":  0,
 "BAR":  0,
 "FOO":  0,
 "PIYO":  0
}
-> 順序が変わっている。
Sample2.ps1
$ob = New-Object -TypeName psobject -Property @{}
@('FOO', 'BAR', 'BAZ', 'PIYO') | % {
  $ob | Add-Member -MemberType NoteProperty -Name $_ -Value 0
} 
ConvertTo-Json $ob

{
    "FOO":  0,
    "BAR":  0,
    "BAZ":  0,
    "PIYO":  0
}
-> 指定した順序になっている。
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