local product = 90 * 4
assert(product == 360, "Oh dear, multiplication is broken")
-- The line above does nothing, because 90 times 4 is 360

local meta = {}
local t = setmetatable({}, meta)
print(getmetatable(t) == meta) --> true
-- Make the original metatable unrecoverable by setting the __metatable metamethod:
meta.__metatable = "protected"
print(getmetatable(t)) --> protected

local fruits = {"apples", "oranges", "kiwi"}
for index, fruit in ipairs(fruits) do
   print(index, fruit) --> 1 apples, 2 oranges, 3 kiwi, etc...
end

local scores = {
    ["John"] = 5,
    ["Sally"] = 10
}

for name, score in pairs(scores) do
    print(name .. " has score: " .. score)
end

local function divideByFive(n: number): number
	return n / 5
end

local success, errorMessage = pcall(divideByFive, "notANumber")  -- Results in error...

if success then
	-- Handle successful response...
else
	print("Error message:", errorMessage)
end

-- "./" prefix is equivalent to script.Parent
require("./MySibling")
require((script.Parent).MySibling)

-- "../" prefix is equivalent to script.Parent.Parent
require("../SiblingOfMyParent")
require((script.Parent.Parent).SiblingOfMyParent)

-- "../" can be chained to go up multiple levels
require("../../SiblingOfMyGrandparent")
require((script.Parent.Parent).Parent.SiblingOfMyGrandparent)

-- "@self" prefix corresponds to the script itself
require("@self/MyChild")
require((script).MyChild)

-- "@game" prefix corresponds to the DataModel root
require("@game/ReplicatedStorage/Shared/MyModule")
require((game).ReplicatedStorage.Shared.MyModule)

print(select(2, "A", "B", "C")) --> B C
print(select(-1, "A", "B", "C")) --> C
print(select("#", "A", "B", "C")) --> 3

local meta = {__metatable = "protected"}
local t = {}
setmetatable(t, meta) -- This sets the metatable of t
-- We now have a table, t, with a metatable. If we try to change it...
local ok, err = pcall(setmetatable, t, {})
assert(not ok and err:find("protected")) -- Error: cannot change a protected metatable

print(tonumber("1337")) --> 1337 (assumes base 10, decimal)
print(tonumber("1.25")) --> 1.25 (base 10 may have decimal portions)
print(tonumber("3e2")) --> 300 (base 10 may have exponent portion, 3 × 10 ^ 2)
print(tonumber("25", 8)) --> 21 (base 8, octal)
print(tonumber("0x100")) --> 256 (assumes base 16, hexadecimal)
print(tonumber("roblox")) --> nil (does not raise an error)
-- Tip: use with assert if you would like unconvertable numbers to raise an error
local ok, err = pcall(function() assert(tonumber("roblox")) end)
print(ok and "Success" or "Error: " .. tostring(err)) --> Error: assertion failed

local isRobloxCool = true
-- Convert the boolean to a string then concatenate:
print("Roblox is cool: " .. tostring(isRobloxCool)) --> Roblox is cool: true