関連ワード:  powershell find index in array    powershell get index in array    powershell find index of object in array    powershell find index of string in array    powershell find index of value in array    powershell find index of item in array    powershell get index of value in array    powershell get index of array in foreach    powershell return index of array value    powershell find all index of item in array