関連ワード:  powershell check if array has elements    powershell check if array contains element    powershell check if array is null or empty    powershell check if array is null    powershell check if array element is empty    powershell check if array is not null    powershell check if array element exists    powershell check if array of objects contains value    powershell check if array of objects contains string  
結果 : powershell check if array has elements