How to use multiple values to compare in powershell-CodePudding

In simple words I am trying -

$animal = "cat", "dog", "rabbit"
$animal -contains "dog" # -----> Getting true, which is working!

However, when I try to check multiple values like -

$animal -contains "dog" -and "bat" # --> still getting a "True" response.

How can I check multiple values using contains operator?

CodePudding user response：

Boolean expressions work a little differently. You need this:

$animal -contains "dog" -and $animal -contains "bat"

You could also put "dog" and "bat" in their own array, and loop through the array.

CodePudding user response：

To complement Joel Coehoorn's helpful answer, you can use the IsSupersetOf(IEnumerable<T>) Method from the HashSet<T> Class.

$animal = [System.Collections.Generic.HashSet[string]]::new(
    [string[]] ('cat', 'dog', 'rabbit'),
    [System.StringComparer]::OrdinalIgnoreCase
)

$animal.IsSupersetOf([string[]] ('dog', 'bat')) # => False
$animal.IsSupersetOf([string[]] ('dog', 'cat')) # => True