Tables - Roblox Beginners Scripting Tutorial #17 (2024) 

To clarify pairs() and ipairs(): pairs() is used to iterate through dictionaries ipairs() is used to iterate through arrays **only**. This is because elements in an array are numerically ordered, while a dictionary is unordered. I don't think I made that clear so my apologies.

the thing is you got only few thousand views . but you decided to teach and continued . you deserve so much respect . i really appreciate it .Thanks

-- Buying from a menu local menu = { ["Burger"] = 15, ["Fries"] = 5, ["Cola"] = 4, ["Milk"] = 3, } menu["Burger"] = 12 print(menu["Burger"], " dollars for a burger,", menu["Fries"], " dollars for fries and", menu["Cola"], "dollars for a cola") print("That would be", menu["Burger"] + menu["Fries"] + menu["Cola"], "dollars in total!") -- Output 1: 12 dollars for a burger, 5 dollars for fries and 4 dollars for a cola -- Output 2: That would be 21 dollars in total!

26:45 we thank you more for all the tutorials

We appreciate the tutorials BrawlDev :)

Thank you so so so much for your tutorials! Love them and learned a lot!

thanks for being consistent!

Thank you so much for these tutorials, they helped a lot and are well organized :D

Thank for these tutorials they were great now I can move on to the advanced tutorials.

Mannnnn, I am finally done and yeah! I have learned quite a lot throughout this playlist/tutorial guide... Excited to do the next video (Making an actual game >:))

I think after these all series I am not beginner programmer but I feel like intermediate programmer with you

Thank you so much of these tutorials!

UPDATE: If you do print(myArray) now, IT WORKS! This is what the output looks like: OUTPUT: [1] = 10, [2] = "string", [3] = true, [4] = 500

i have a notepad to help me follow along with studio bc my attention spans crap and i think i wrote down everything u said lmao. great vid

local lvl6 = game.Workspace[" Levels"].Level6 local part = {lvl6.Part, lvl6.Part1, lvl6.Part2, lvl6.Part3, lvl6.Part4, lvl6.Part5, lvl6.Part6, lvl6.Part7, lvl6.Part8} local num = 1 while true do part[num].CanCollide = true part[num].Transparency = 0 task.wait(1.5) part[num].CanCollide = false part[num].Transparency = 0.8 num = num + 1 if num == 10 then num = 1 end end -- that going to make a obstacle move forward and backward

Took me a whole week to work through this and it was worth it i now know what tutorials talk about and also code my own small games like an obby

dope man, learned a lot from your tutorials thank you

These tutorials are so helpful! I have no idea how I could've learned Luau without this tutorial.

thank you, this journey was really helpful !

Fr u save me bro i was a completly nooby in script and don't even know about anything, but now i fell i can finnaly progress by ur tutorial TYSM !

This is the best tutorial i need so far for simulator games thank you so much

congrats on the new shirt:)

Thank you so much! I want to make a game on Roblox which looks like it could be really popular. I am on my own and I don't like to hire people! I'm good at making models and maps and the scripting was the only thing stopping me! The game i am making is my first one and it will be really good!

you are the best in the world i would have never learned about any of this anywhere else this means the world to me thank you so much!

Thank you. With your help, I was able to make a functioning gambling button with a working money system! :D

i love this chanel, i have always had a deep intress in coding but found it to daunting to begin to learn but this chanel broke it down to bite sized pieces for me

Not related to the video but I made a fog using the info from this tutorial that slowly deals damage like the storm from Fortnite. It doesn’t move yet but this tutorial has taught me tons. Thanks for the help dude!

Super helpful thanks man

For me who has only learned backend C++, array = {10, "string", true} looks crazy

No way you actually did a tutorial at table lets goo!!!!! keep making good video man

Nice tutorial but i have a question, what is the difference of "game.Workspace.Part" instead we can just simply write "workspace.Part"

Summary Tables are a type of data collection in LUAU (a data collection is basically a variable which can contain many values inside it) There are 2 types of tables in LUAU: Arrays and Dictionaries - Array: They are tables whose elements are indexed with numbers based on the position of the element we want to get, for example: array[4]. This gets the element in position 4 of the array - Dictionaries: These are tables whose indexes are a data type other than a number (i.e. you can not index by doing dict[4]). So to index, you must do it with the name of the "key" (the key is the name that refers to a certain value, this name is used only to access the value contained) as follows: dict["name"]. This will get the dictionary value with the key "name" What is indexing? Indexing is to ACCESS a specific value in an array or dictionary based on the key that references it, by default, the arrays have as index a number (from 1 to the number of elements). While the dictionaries, will depend on what value you put, whether it is a text, a reference in memory, a part, or whatever "#" as operator The # symbol is used to get the number of elements in an ARRAY (this does not work with dictionaries, if you try it, you will get 0 even if you have values).

Bro's speedrunning the scripting series Just kidding. I've been able to study scripting consistently because of your consistent uploads. Thank you, man💯

your kinda wrong with the pairs and ipairs part, because ipairs iterates through arrays, while pairs iterates through both arrays and dictionaries. Meaning you can't use ipairs with dictionaries, only arrays.

"we are gonna set this cheeseburger to 15 dollars something ridiculous" california:

oh god, i saw "arrays" in the youtube time section and had flashbacks to my coding class

From what it looks, it seems that dictionaries work similarly to hashtables, in that case it makes sense why pairs shows itmes in a "random" order

This was a great episode

*DICTIONARY WORK* _Heres what I did for the dictionary:_ local menu = { ["1"] = "Cheeseburger", ["2"] = "Coke", ["3"] = "Hamburger", ["2"] = "Pancakes", ["1"] = "Bacon & Eggs", } print(menu["1"]) *ANSWER = "Bacon & Eggs"*

local Array = {5, 10, 55-54} for A = 1, #Array do print(Array[A]) end -- This is A Type Of Table Called Array. -- Array Is A Data Structure That Can Hold Multiple Values. table.insert(Array, 50) print(Array[4]) if Array[4] == nil then print("There's not a 4th position") else print("There's a 4th position") end -- table.insert is a function that is used to add more values inside of an array. table.remove(Array, 4) print(Array[4]) if Array[4] ~= nil then print("4th position still exist") else print("4th position has been taken") end -- table.remove is a function that is used to remove values from an array. if table.find(Array, 10) then print("10 has been found") end -- This is the first way to find a value in an array -- table.find is a function that is used to find values from an array. for i = 1, #Array do if Array[i] == 1 then print("1 has been found") end end -- This is the 2nd way to find a value in an array (using for loop)

local partsFolder = Instance.new("Folder",workspace) for index = 1,8 do task.wait(1) local part = Instance.new("Part") part.BrickColor = BrickColor.random() part.Position = Vector3.new(0,20,0) part.Parent = partsFolder print("part created") end local partsTable = partsFolder:GetChildren() --returns all the children inside our specified instance and converts them into a array table for _,parts in ipairs(partsTable) do task.wait(1) parts:Destroy() print("Part",_,"Destroyed") end moving up! these tutorials have been so helpful and im very excited to move on to the advanced guide

2:41 checkpoint for myself

thanks for tutorials :)

6:48 If your using Roblox studio, it will actually print out all the elements in the array. He was probably using a older version of roblox studio when he uploaded this video.

This is useful for ragdoll.

Great video, when will you talk about raycasts?

local activatie = { ["activatie1"] = 18,--roler coster ["activatie2"] = 33,--bungie jumping ["activatie3"] = 10,--trampoline ["activatie4"] = 13,--eating contest } for menuItems, price in pairs(activatie) do print(menuItems, price) end your are a amazing teachir for scripting its been my dream to know how to script and become a game maker and when i reach that goal i will remeber that you where the first persone to ever motivate me to keep moving thank you with all my heart

This is the best tables tutorial i have watched holy shit.

local array = {1, 2, 3, 4, 5, 6, 7, 8, 9} for _, num, in ipairs(array) do print(num) end

very good tutorial W

ive been scripting for 6 months and would appreciate if you make a video about metatables and object oriented programming since it is a useful tool in roblox studio

dawg i just realized we spell it like "Cheeseburger" not "Cheezeburger" with a z 💀💀💀💀💀

My little script local smallSupermarket = { ["Apple"] = 5, ["Banana"] = 3, ["Mango"] = 8, ["Bread"] = 2 } for index, i in pairs (smallSupermarket) do print(index, i) end

heres what i did local store = { ["Book"] = 10, ["Chair"]= 30, ["Blankets"]= 15, } for storeItem, cost in pairs(store) do print(storeItem,cost) end

--Locatates model, them gets the items within the model, then uses for loop to order items and rename (SO hyped for the next vid!) local model = game.Workspace.Model local items = model:GetChildren() for index, item in ipairs(items) do items[1].Name = 'Part 1' items[2].Name = 'Part 2' items[3].Name = 'Part 3' print(item) end -- kept it simple today

love you bro

This logic teleports a part randomly within the parameters local part = game.Workspace.randomPart while true do local randomX = math.random(0,100) local randomY = math.random(0,1.5) local randomZ = math.random(0,100) part.Position = Vector3.new(randomX, randomY, randomZ) task.wait(1) end

local theWorkspace = game.Workspace local Plate = game.Workspace.Plate local isThePLatetouched = false Plate.Touched:Connect(function(partTouching) if isThePLatetouched == false then isThePLatetouched = true local humanoid = partTouching.Parent:FindFirstChild("Humanoid") if humanoid then print("Your workspace consists of...") for index, part in pairs(theWorkspace:GetChildren()) do print(part.Name) task.wait(1) end end isThePLatetouched = false end end) -- what this does is basically whenever we touch the Plate inside of the workspace, it states every item in the Workspace. It also takes a cooldown for a second after stating one item after the other item.

Thank you so much for this series looking forward to the challenges and finally moving on to the advanced series ♥

Note if we want to get all object that are inside of Model, not just its Children, and also we want to check if we getting a Parts not other things it will looks like this; -- Get all the Parts inside the Model for _, part in pairs(model:GetDescendants()) do -- Check if the part is a Part if part:IsA("BasePart") then -- Print the name of the Part print(part.Name) end end

--[[local menu = { --table Chessburger = 15, ---a value inside of the table BloxyCola = 5, ---a value inside of the table Pizza = 25, ---a value inside of the table Tacos = 10 ---a value inside of the table } for MenuItem, Price in pairs(menu) do ---does a for loop and does a pair loop randomly print(MenuItem, Price) ---prints the menu item and price end--]] ---menu["Chessburger"] = 5 ---print(menu["Chessburger"]) --[[local menu = { ---table ["CheeseBurger"] = 15, ---a value inside of the table ["BloxyCola"] = 5, ---a value inside of the table ["Pizza"] = 25, ---a value inside of the table ["Tacos"] = 10 ---a value inside of the table } menu.CheeseBurger = 5 print(menu.CheeseBurger)--]] --print(menu["CheeseBurger"], menu["BloxyCola"], menu["Pizza"], menu["Tacos"])--]] --[[local MyArray = {10,20,30,40,50,60,70,80,90,100} ---Array(type of table) for _ (can be i or _), number in ipairs(MyArray) do ---does a for loop that is ipairs (sequence) print(number) end--]] ---for i =1, #MyArray do --for loop in --print(MyArray[i]) --prints my array --end --table.insert(MyArray, 40)---inserts number ---for i =1, #MyArray do --for loop in # --print(MyArray[i])--prints my array --end --table.remove(MyArray, 4)---removes the array local model = game.Workspace.MyModel for index, part in pairs(model:GetChildren()) do print(part.Name) end

Hello, I've watching your tutorial and I am having fun with it, I would just like to ask if you could create a tutorial on creating a basic game manager that is in the module, I know you have a tutorial on module script already, but what I would like to see is on an actual game manager that can perform basic game like an loop game, I know its kinda lot to ask for, but I would like to have a server game manager incorporated with a module script that can be use for loop game

If you and cobebro29 collabed you could create a entire roblox story game

The best roblox studio teacher ever😅Thank you so much for everything ❤

wait a minute, if you've seen this comment please answer my question 🙏🙏🙏🙏: Q1.)Does index represent the variable in the for loop or the index of the numbers in the array which is "myArray" Q2.) Could someone pls clarify the for loop for me pls🙏🙏

local model = game.Workspace.Model for _ , part in ipairs(model:GetChildren()) do print(part.Name) part.BrickColor = BrickColor.Random() end

this was 2 months ago? insane

you made a burger cost 15 and called it ridiculous, but sometimes that's how much they cost here in california :(

local mcbonaldsmenu = { ["ShinyBurger"] = 2, ["FrenchFriesOfDoom"] = 5, ["Sparkingbottle"] = 3, } for menuItem, Price in pairs(mcbonaldsmenu) do print(menuItem,Price) end

You should be using tables to change parts’ properties. But you did it the lazy way: print(). Im a visual learner and i got no visuals here.

When will the next serie published ? it looks nice :)

good video

ok with programming now! NOW GIVE US BUILDING TUTORIALS. /j

unfortunately I tried to grab the value from the leaderstats but I just didnt know how to get it so I got stuck pretty much that. I wanted to use the value of the stats to determine if a print statement showed saying what things you could afford but I just didnt got it to work.

thanks

Will you remake another advanced serie after the begginer serie ?

thats a expensive burger cuz

-- This is what I did (I basically made it so when you touch that touchPart we made in a previous episode, you "get" a pet: local rollablePets = { commonPet = "COMMON DOG", commonPet2 = "COMMON CAT", commonPet3 = "COMMON LIZARD", commonPet4 = "COMMON GUINEA PIG", commonPet5 = "COMMON BUNNY", uncommonPet = "UNCOMMON ELEPHANT", uncommonPet2 = "UNCOMMON LION", uncommonPet3 = "UNCOMMON TIGER", uncommonPet4 = "UNCOMMON RHINO", uncommonPet5 = "UNCOMMON GAZELLE", rarePet = "RARE SHEEP", rarePet2 = "RARE COW", rarePet3 = "RARE MONKEY", rarePet4 = "RARE HORSE", rarePet5 = "RARE PENGUIN", mythicalPet = "MYTHICAL RAINBOW AZUNE", mythicalPet2 = "MYTHICAL DRAGON", mythicalPet3 = "MYTHICAL RUDOLPH", mythicalPet4 = "MYTHICAL UNICORN", mythicalPet5 = "MYTHICAL ????", } local tp = game.Workspace.touchPart local partIsTouched = false local debounce = 2 game:GetService("Players").PlayerAdded:Connect(function(plr) plr.CharacterAdded:Connect(function(character) tp.Touched:Connect(function(otherPart) if partIsTouched == false then partIsTouched = true if otherPart.Parent == plr.Character then local petRandomizer = math.random(1,20) if petRandomizer == 1 then print("You got a(n) "..rollablePets.commonPet.." 1/20") end if petRandomizer == 2 then print("You got a(n) "..rollablePets.commonPet2.." 2/20") end if petRandomizer == 3 then print("You got a(n) "..rollablePets.commonPet3.." 3/20") end if petRandomizer == 4 then print("You got a(n) "..rollablePets.commonPet4.." 4/20") end if petRandomizer == 5 then print("You got a(n) "..rollablePets.commonPet5.." 5/20") end if petRandomizer == 6 then print("You got a(n) "..rollablePets.uncommonPet.." 6/20") end if petRandomizer == 7 then print("You got a(n) "..rollablePets.uncommonPet2.." 7/20") end if petRandomizer == 8 then print("You got a(n) "..rollablePets.uncommonPet3.." 8/20") end if petRandomizer == 9 then print("You got a(n) "..rollablePets.uncommonPet4.." 9/20") end if petRandomizer == 10 then print("You got a(n) "..rollablePets.uncommonPet5.." 10/20") end if petRandomizer == 11 then print("You got a(n) "..rollablePets.rarePet.." 11/20") end if petRandomizer == 12 then print("You got a(n) "..rollablePets.rarePet2.." 12/20") end if petRandomizer == 13 then print("You got a(n) "..rollablePets.rarePet3.." 13/20") end if petRandomizer == 14 then print("You got a(n) "..rollablePets.rarePet4.." 14/20") end if petRandomizer == 15 then print("You got a(n) "..rollablePets.rarePet5.." 15/20") end if petRandomizer == 16 then print("You got a(n) "..rollablePets.mythicalPet.." 16/20") end if petRandomizer == 17 then print("You got a(n) "..rollablePets.mythicalPet2.." 17/20") end if petRandomizer == 18 then print("You got a(n) "..rollablePets.mythicalPet3.." 18/20") end if petRandomizer == 19 then print("You got a(n) "..rollablePets.mythicalPet4.." 19/20") end if petRandomizer == 20 then print("You got a(n) "..rollablePets.mythicalPet5.." 20/20") end end task.wait(debounce) partIsTouched = false end end) end) end)

6:19 for this why dont you have to add a final number to show in what incrimints it goes through the script? ex: mycounter = (for 2, 6, ?) you didnt clarify what would be the ? in this scenerio

20:07

local menu = { ["Berger"] = 10, ["LazyBerger"] = 9, } menu["Berger"] = 9 print(menu["Berger"], "is the Bergerprice",menu["LazyBerger"], "is the LazyBerger Price") print(menu["Berger"]+menu["LazyBerger"] ,"All Prices") --Shop

local menu = { ["Burger"] = 6, ["Fries"] = 8, ["CheesBurger"] = 9, ["Pizza"] = 14, ["Cola drink"] = 2, } menu["Burger"] = 12 print(menu["Burger"], menu["Fries"], menu["CheesBurger"], menu["Pizza"], menu["Cola drink"])

25:39

better than tapwater ngl

does the underscore in ipairs and pairs really change anything?

my entry for learning opportunity this code makes it to where when i hit a button it gives to opposite colors local Discofloor = game.Workspace.Gaming local button = Discofloor:FindFirstChild("Button") local part = Discofloor:FindFirstChild("Bing bong") local part2 = Discofloor:FindFirstChild("Bing boing") button.Touched:Connect(function(BasePart) local c = math.random() part.Color = Color3.fromHSV(c,1,1) local d = 1-c part2.Color = Color3.fromHSV(d,1,1) task.wait(0.1) end)

Also I tried to script after these series but I forgot almost everything after this series, well my memory sucks everytime but can you give me tip how to remember it ?

--[[local myArray = {10, 20, 30, 40, 50, 60, 70, 80, 90, 100} for _, number in ipairs(myArray) do print(number) end]] --[[local menu = { ["Cheeseburger"] = 4, ["Cola"] = 4, ["Sword"] = 50, ["MedPack"] = 50, } for menuItem, price in pairs(menu) do print(menuItem, price) end]] local model = game.Workspace.Model for index, part in pairs(model:GetChildren()) do print(part.Name) end

Restourant is so cheap :D

ONE MORE EPISODE (im a sigma)

Bro is teaching programming for free

7:22

Taking Notes :D (ironically here’s a note for me or anyone else reading, most these timestamps aren’t accurate I just subtract like 1-3 seconds from where I stopped to take down notes) 1:03 So tables are kinda like variables but they can *store multiple kinds of data* (examples so far have been numbers, booleans, and strings) 2:13 Tables are made using {} and are done in an order? 3:04 and 3:12 They’re done from left to right, which the first/leftmost value having a positional value of 1, which each next one being a higher number (the second value’s got a position of 2, the third has a position of 3, etc.) 2:42 To add another piece of data/value you just to need to use a comma before adding another one 3:12 to access data inside Arrays you need to use their positional value in the table. And then use [] with their positional value to access it like this 4:04 4:51 to print out all everything in the array you gotta make a for loop (lol I basically paraphrased what you said) 4:57 the loop’s starting value will use the first positional value in the array, which is always 1 (although maybe I could skip the first value by making it 2 but I have no idea if that would work or if that has a use) 8:14 Perfect explanations as always (this is literally the 2nd video I’ve watched from you XD) 9:06 so that’s what “i” means, “index”. I was always confused on what it meant when I saw it in scripts and dev forums Now what does index mean XD 10:22 Once again, perfect 👌 also yay now I know what an Index is… a table’s positional value 💀 Well I will be calling it index from now on it’s so short and simple compared to typing out positional value. Also I’m gonna type the rest of this in the comments of my own comment since this main one is bugging out like hell because I’m on mobile

this is my code thank you -- Coffee Shop menu and price local coffeeshop = { ["Coffee"] = 2, ["latte"] = 3, ["Fruit"] = 2, ["Sandwhich"] = 3, ["water"] = 0, ["muffins"] = 2, ["pastries"] = 2 } for menuItem, price in pairs(coffeeshop) do print(menuItem, price) end

how does Tables help?

Array index start with 1‼Oh god why they can't follow other programming languages

is this what searching in games are?

Is this the last video of the beginner tutorial

is there a reason why mine is printing {...} - Server - tables:3 instead of a hash value

i still dont understand whats the use of pairs() and ipairs()