Powershell - Get array2 elements using values from array1-CodePudding

I have two arrays and I want to get array2 number of elements by looping through array1 based on the value of each element of array1

$array1 = @(2,1,3)
[System.Collections.ArrayList]$array2 = "string1",'string2','string3','string4','string5','string6'

    for ($i=0; $i -lt $array1.Length; $i  ) {
        $cod_nr = $array1[$i] - 1
    
        for ($x=0; $x -le $cod_nr; $x  ) {
           ... missing logic ...
           Basically here I should get first $array1[-] elements of array2 every run
       
        }
       (remove array collected element - maybe this step should be in the for loop above)
       missing logic
    }

Basically, I want to get the following output: 1st run (get 2 elements [array1[0,1]: $my_variable = "string1, string2"

2nd run (get 1 element $array1[2] - number of the element will change if a element is removed): $my_variable = "string3"

3rd run (get 3 elements $array1[3,4,5] - number of the element will change if a element is removed): $my_variable = "string4, string5, string6"

CodePudding user response：

If we could understand what you're actually trying to solve, the advice will probably be different.

However, for your specific request, here is how I would handle it.

$array1 = 2,1,3
[System.Collections.ArrayList]$array2 = "string1",'string2','string3','string4','string5','string6'

foreach($element in $array1){

    $my_variable = $array2[0..($element - 1)]

    Write-Host my_variable contains $my_variable

    $array2.RemoveRange(0,$element)
}

Since you always want the first X elements, it's rather easy. Just grab those and then remove them. No need to use a for loop.

Output

my_variable contains string1 string2
my_variable contains string3
my_variable contains string4 string5 string6