Powershell中如何将数组归约为动态对象

owfi6suc 于 2022-12-13 发布在 Shell

关注(0)|答案(1)|浏览(107)

我有一个JSON数组，如下所示：

$json = [
  {  "name": "Name",      "value": "Mike" },
  {  "name": "Age",       "value": 25 },
  {  "name": "IsMarried", "value": true }
]

预期输出如下：

{
  "Name": "Mike",
  "Age": 25,
  "IsMarried": true
}

在javascript中，我会这样做：
const result = json.reduce((acc, { name, value }) => { acc[name] = value; return acc; }, {})

问题：

是否存在类似reduce的函数？如何实现相同的效果？

powershell

来源：https://stackoverflow.com/questions/74614206/how-to-reduce-array-to-dynamic-object-in-powershell

1条答案

按热度按时间

uyto3xhc1#

要'合并'数组项，我会使用一个有序的哈希表如下：

$json = @'
[
  {  "name": "Name",      "value": "Mike" },
  {  "name": "Age",       "value": 25 },
  {  "name": "IsMarried", "value": true }
]
'@

# create an ordered Hashtable to store the values
$combine = [ordered]@{}
($json | ConvertFrom-Json) | ForEach-Object {
    $combine[$_.Name] = $_.Value
}

# now you can leave it as Hashtable and convert it to JSON
$combine | ConvertTo-Json

# or you can convert (cast) to PsCustomObject first:
# [PsCustomObject]$combine | ConvertTo-Json

结果：

{
    "Name":  "Mike",
    "Age":  25,
    "IsMarried":  true
}

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Powershell中如何将数组归约为动态对象

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