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What does it mean when there's a "#" next to a name of a variable?
Hi, I wanted to ask what it means when there's a hashtag right next to a name of a variable like this example:
local players = game.Players:GetChildren()
local playerPositions = {}
if #Players then --what does this mean
for _, Player in pairs(players) do
table.insert(playerPositions, Player.Name)
end
end
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When doing :GetChildren that variable turns into a table since :GetChildren() returns a table of the children of an instance MarkedTomato 810 — 3y
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The # if used before a table will returns the length of the table. This can be used in many cases as I listed a couple below.
local table = {1, 1, 1}
print(#table)
-- Expected output 3
local loadedPlrs = {}
-- This really wouldn't be necessary just an example
for _, plr in pairs(game.Players:GetPlayers()) do
table.insert(loadedPlrs, plr)
print(#loadedPlrs .. " Players loaded!")
end
In your case it looks like it checks if any players exist before running that code.
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Thanks, this helped me a lot since I've read books about Roblox Lua and I've seen examples where they used this. The reason why I made this post though is that they never really explained what the # does very well. AdamBolt2 7 — 3y