Where does an item go when the player is holding it and how to locate it?

This is a script that takes the items in the player's backpack and puts the names of those things into the table things as a string. My problem is that when the player is holding an item, the item disappears from their backpack which means that it wont be located by the for loop. How could i modify this so that if they are holding an item, it finds it as well?

local things = {}

for _, v in pairs (player:GetChildren("Backpack")) do
	things[v.Name] = v.Name
end

When they are holding it, it goes into the players character. Use player.Character:FindFirstChild("ToolName") for this.