There are not many cases that occur, but since it was in another language, I tried implementing it with PowerShell.
The command differs depending on the version of PowerShell, so check the actual version.
Before Code 7.0
$arr = @("aa","bb","cc","dd","ee")
for($i= 0;$i -ne $arr.Length;$i++){
$_rdm = get-random -Maximum ($arr.Length-1) -Minimum 0
$_tmp = $arr[$i]
$arr[$i] = $arr[$_rdm]
$arr[$_rdm] = $_tmp
}
Get-Random
Get-Random is a default integer type unless it is specified with a decimal point. return.
-Maximum
specifies the number of arrays, but the number returned is the index as it is, so the number of elements in the array is -1
-Minimum The
minimum value is 0
Another example
$arr = @("aa","bb", "cc","dd","ee")
$rdm = get-random -Maximum $arr.Length -Minimum 0 -Count $arr.Length
foreach($_r in $rdm){
$_tmp = $arr[$rdm .indexof($_r)]
$arr[$rdm.indexof($_r)] = $arr[$_r]
$arr[$_r] = $_tmp
}
get random in array. Use the -Count parameter to get an array.
Use Foreach instead of For.
To get the index during Foreach, you can get the index with Array.IndexOf($Item).
From Code 7.1
$arr = $arr | Get-Random -Shuffle
From version 7.1 onwards you can use the -Shuffle parameter to directly shuffle the array.
Finally,
it is better not to use PowerShell6 or earlier versions.
If you use PowerShell7 or later versions, a variety of tools are available, so you can easily write code in PowerShell.
