how to make it where an instance is only created once if the same child name? [closed]

local Weapons = game.Players.LocalPlayer.Data:WaitForChild("Inventory").Weapons:GetChildren()
             number = 0
             children = #Weapons


            for  i = 1, #Weapons do

    local new = Instance.new("TextLabel")
                new.Parent = script.Parent
                new.Position = position + UDim2.new(0,0,0,30)
                position = position + UDim2.new(0,0,0,25)
                new.Size = UDim2.new(0,200,0,10)
                new.ZIndex = 2
                new.BackgroundTransparency = 1
                new.FontSize = "Size18"
                new.Font = "SourceSans"
                new.TextXAlignment = "Left"
                new.Text = Weapons[i].Name

This is what i dont want it to do