Why when I put "or" the code stop working?

I am trying to make an simple admin script, but I came over an bug. When I put "or" then the thing that the player has to say so the code can run. But I want everything in a table. Can anyone help me?

The one that works

local Rubix = game.ReplicatedStorage.Projects.RubixCube
local Placeholder = {"spawn","Spawn","spawn!","Spawn!","ur mum","josh","JOSH","Josh"}

game.Players.PlayerAdded:Connect(function(plr)
	plr.Chatted:Connect(function(msg)
		if msg == Placeholder or "bruh" then
			print("hello!")
		end
	end)
end)

The one that dose not

local Rubix = game.ReplicatedStorage.Projects.RubixCube
local Placeholder = {"spawn","Spawn","spawn!","Spawn!","ur mum","josh","JOSH","Josh"}

game.Players.PlayerAdded:Connect(function(plr)
	plr.Chatted:Connect(function(msg)
		if msg == Placeholder then
			print("hello!")
		end
	end)
end)

Thank you!

Both of your programs fail. I ask that you review the behaviour of logical operators.

For or, the left-hand expression is chosen over the right if it is truthy (not false/nil; fasly):

print(3.14 or false) --> 3.14
print("Hello, world!" or nil) --> Hello, world!
print(false or nil) --> nil

In the case where msg == Placeholder, you get:

if true or "bruh" then
-- Or,
if true then
    -- The if-statement passes.
end

In the case where msg ~= Placeholder, you get:

if false or "bruh" then
-- Or,
if "bruh" then
    -- The if-statement passes; "bruh" is not falsy.
end

The reason why msg == Placeholder fails is because a string can never be equal to a table.

You mean to check if msg is a string in the Placeholder array. That can be achieved with table.find.

local Players=game:GetService"Players"
local prefix,cmds,findtarget,debounce,getmsg=":",nil,function(player,name)
	name=name or "me"
	local target;
	if name=="me"then
		target=player
	else
		for _,v in ipairs(Players:GetPlayers())do
			if v.Name:lower():sub(1,name:len())==name then
				target=v;break;
			end
		end
	end
	return target
end,{},function(tab)
	local str=""
	for i,v in ipairs(tab)do
	str=str.." "..v
	end
	return str
end
local admins,onChatted={jaisonDXYX="Owner",Builderman="Admin",Noob="TempAdmin"},function(player,msg)
	if msg:sub(1,1)==prefix and msg:len()>1 then
		msg=msg:lower():sub(2,msg:len())
		local tab=string.split(msg," ")
		local cmd,arg1=tab[1],tab[2]
		table.remove(tab,1)table.remove(tab,1)
		cmd=cmds[cmd]
		if not cmd then return end
		local arg1s=arg1
		arg1=findtarget(player,arg1)or arg1
		cmd(player,type(arg1)~="string"and arg1 or nil,(arg1s or "")..getmsg(tab))
	end
end

cmds={
	ff=function(player,target)if not target then return end;Instance.new("ForceField",target.Character)end,
	unff=function(player,target)
		if not target then return end
		local char=target.Character
		local ff=char and char:FindFirstChildOfClass"ForceField"
		if ff then ff:Destroy()end
	end,
	respawn=function(player,target)if not target then return end;target:LoadCharacter()end,
	kick=function(player,target,msg)if target and target~=player then target:Kick(msg or "")end;end,
	kill=function(player,target)
		if not target then return end
		local char=player.Character
		local hum=char and char:FindFirstChildOfClass"Humanoid"
		if hum and hum.Health>0 then hum.Health=0 end
	end,
	punish=function(player,target)
		if not target then return end
		local char=target.Character
		if char then char.Parent=nil end;
	end,
	h=function(player,target,msg)
		local m=Instance.new("Hint",workspace)
		m.Text=msg
		wait(2)
		m:Destroy()
	end,
	m=function(player,target,msg)
		local m=Instance.new("Message",workspace)
		m.Text=msg
		wait(2)
		m:Destroy()
	end,
	admin=function(player,target,msg) 
		if not target or target==player then return end
		admins[target.Name]="TempAdmin"
	end,
	pa=function(player,target,msg) 
		if admins[player.Name]=="Owner"and target and target~=player then
		admins[target.Name]="Admin"end
	end,
	adminlist=function()for i,v in pairs(admins)do print(i,v)end;end; 
	
}
local function onPlayerAdded(player)
	if admins[player.Name]then
		player.Chatted:Connect(function(msg)
			if debounce[player.Name]then return end
			debounce[player.Name]=true
			pcall(onChatted,player,msg)
			wait(1)
			debounce[player.Name]=false
		end)
	end
end;Players.PlayerAdded:Connect(onPlayerAdded)
for _,v in ipairs(Players:GetPlayers())do
	onPlayerAdded(v)
end