javascript 在 powershell 中使用 JScript
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Using JScript in powershell
提问by RC1140
Reading through the documentation for powershells add-type it seems you can add JScript code to you powershell session.
通读 powershells add-type 的文档，您似乎可以将 JScript 代码添加到您的 powershell 会话中。
Firstly is there a decent example of how this is done and secondly can you use this to validate normal javascript code (as I understand JScript is the MS implementation)
首先有一个很好的例子说明这是如何完成的，其次你可以使用它来验证普通的javascript代码（据我所知，JScript是MS实现）
采纳答案by Doug Finke
This may be a good starting point
这可能是一个很好的起点
PowerShell ABC's - J is for JavaScript(by Joe Pruitt)
PowerShell ABC's - J 用于 JavaScript（Joe Pruitt）
Here is a code snippet from the above article:
这是上面文章中的代码片段：
function Create-ScriptEngine()
{
param([string]$language = $null, [string]$code = $null);
if ( $language )
{
$sc = New-Object -ComObject ScriptControl;
$sc.Language = $language;
if ( $code )
{
$sc.AddCode($code);
}
$sc.CodeObject;
}
}
PS> $jscode = @"
function jslen(s)
{
return s.length;
}
"@
PS> $js = Create-ScriptEngine "JScript" $jscode;
PS> $str = "abcd";
PS> $js.jslen($str);
4
回答by John Fouhy
Here is a simple json parser: https://gist.github.com/octan3/1125017
这是一个简单的 json 解析器：https: //gist.github.com/octan3/1125017
$code = "static function parseJSON(json) {return eval('(' +json + ')');}"
$JSONUtil = (Add-Type -Language JScript -MemberDefinition $code -Name "JSONUtil" -PassThru)[1]
$obj = $JSONUtil::parseJSON($jsonString)
-PassThruwill give you an object (actually two objects; you want the second one) that you can use to call the functions.
-PassThru会给你一个对象（实际上是两个对象；你想要第二个），你可以用它来调用函数。
You can omit it if you want, and call the function like this:
如果需要，您可以省略它，并像这样调用函数：
[Microsoft.PowerShell.Commands.AddType.AutoGeneratedTypes.JSONUtil]::parseJSON($jsonString)
but that's a bit of a pain.
但这有点痛苦。
回答by js2010
Jscript.net http://www.functionx.com/jscript/Lesson05.htm(or VisualBasic, F# ...) It has to compile into a dll.
Jscript.net http://www.functionx.com/jscript/Lesson05.htm（或VisualBasic、F#...）它必须编译成一个dll。
Add-Type @'
class FRectangle {
var Length : double;
var Height : double;
function Perimeter() : double {
return (Length + Height) * 2; }
function Area() : double {
return Length * Height; } }
'@ -Language JScript
$rect = [frectangle]::new()
$rect
Length Height
------ ------
0 0
