game.Players.PlayerAdded:Connect(function(player) player.CharacterAdded:Connect(function(character) local key = "player_".. player.UserId
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in a code i was following it had and under score after a word for example why do they do that?
1 answer
✓ Accepted answer
Your code is just building a String by concatenating ("combining") the left and right hand side of the "two dots operator" (..). The Lua Manual can help you with understanding it a bit more.
Basically, you want to brush up on your programming basics a bit more!
What you can do is try run this code and then check the Output tab, and maybe you get a better idea of it:
print("player_".. player.UserId)
Also note that you have not posted the entire code. The key ("player_".. player.UserId) is probably just a string that is used to store and identify some data associated with a given player in a table.
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thx]