関連ワード:  powershell count of items in array    powershell count of objects in array    powershell count number of items in array    powershell count number of objects in array    powershell count number of values in array    powershell count items in json array    powershell count each unique items in array    powershell number of items in array    powershell count number of occurrences in array    powershell count number of rows in array