Roblox waitforchild vs findfirstchild Parent. Scripting Roblox Kelas Ekstensi (Roblox Studio Indonesia) | :FindFirstChild () Dan :WaitForChild () Aethertenshi 489 subscribers Subscribe May 19, 2025 · I’m not sure why its returning nil for player, WeaponHandler. I am not sure, and Sep 21, 2021 · Is it possible to use :FindFirstChild() to look for multiple instances and if so, how would this be phrased? If not is there an alternate method to detect multiple instances at once? Jan 26, 2024 · Could you also see into FindFirstChild and WaitForChild autocompleting the children like it does in studio or does that deserve its own issue? This is what I mean: Oct 21, 2024 · If this is a local script, use WaitForChild instead of FindFirstChild, rather than that, maybe the instance isn’t created. ) I also saw in the replies, several people were claiming the posts to be inaccurate. WaitForChild is used for loading assets that might take a while, and it’ll wait for them to load before running code below in the script. Jun 13, 2024 · I’m trying to check the speed of how fast it is for a function like FindFirstChild or WaitForChild or anyother integrated functions that roblox has and how fast it runs. Even in accurate play solo, your server and client are still the same machine and Studio does not simulate any network latency between them. EquipWeapon (player, id, name) in my other script the player variable is called correctly The issue is actually here. So the advice given in the documentation is valid. What's reputation and how do I get it? Instead, you can save this post to reference later. com/video/umihxBhJRB0My other latest videos (PLAYLIST ):https://www. I’m more asking on whether it’s okay to use one over another, (inclusive of the context). Do you want to develop your own game on Roblox but you don't know how to make it work? Watch this scripting series to Jul 7, 2024 · This tutorial explores the FindFirstChild and WaitForChild functions in Roblox scripting, explaining their importance in locating game objects. New comments cannot be posted and votes cannot be cast. This is also a common pitfall of Roblox developers. In this Roblox Studio Tutorial/Overview, I explain how to use for today's tutorial I gonna show what is the difference between FindFirstChildOfClass , FindFirstChildWhishIsA and FindFirstChild on Roblox Scripting Tutori FindFirstChild vs WaitForChild EXPLAINED (Roblox Studio Scripting Skit/Tip)! Let me know if you guys like these type of roblox animation-style scripting tip videos, so that I know whether or not to make more of them! Returns the first child of this Instance that matches the first argument name. Learn how to create successful content on Roblox with comprehensive guides, code samples, reference, and tutorials. Make sure your sound is where you’re saying and spelled exactly the same way and is a valid working sound. Object:IsA() returns true for the given className. What is WaitForChild and FindFirstChild? How do i use it and why? What's the difference? Explain, please :) Archived post. ItemInsideOfParentedItem (this is an example). Workspace:FindFirstChild(v). What Sep 8, 2022 · It is generally good practice to use GetService for most things. Value) returned nil some reason game. Defensive scripting. Players using their names, but it keeps returning “nil”. Jan 15, 2017 · I think the Intellisense feature should work for :WaitForChild, :FindFirstChild(), and variable names. just specifically here ive checked it multiple times, rewritten this section to the same outcome where it indexes with nil every time i run it The WaitForChild method doesn't have to be used for pre-existing instances not made in runtime. Trail I know sometimes after you clone stuff if you try to index it right A place for Roblox Developers to share tips, tricks, and showcase their work. Pelajari kapan pakai yang mana, plus trik biar script-mu tidak crash lagi saat object belum load atau typo nama. 💡 Jun 22, 2025 · Are you sure? Then it must be that findfirstChild returns nil, are you certain the player has the music? You should use prints to make sure it exists. This channel is about Roblox tutorials and other things. Instance:FindFirstChild () is a more efficient alternative to WaitForChild () for objects that are assumed to exist. Workspace:FindFirstChild(v. Aug 7, 2024 · Hey there! If you’re reading this, that must mean you’re confused on FindFirstChild(), WaitForChild(), and Item. Dec 21, 2022 · 0 Try to use WaitForChild() instead of FindFirstChild(). Value + 1 script. nil:FindFirstChild(“thing”) You need to check if the Character is nil before calling it. WaitForChild will wait for the specified child instance to exist, or until the time limit is Jan 4, 2025 · For example, the naive code above works perfectly by itself. ReplicatedStorage. Name) --what would happen if character can't be found? local FolderMaterial = character:WaitForChild("Sistemas Jan 25, 2025 · Always use :WaitForChild () inside a localscript, because things get replicated from the server and that takes some small amount of time, but because scripts run blazingly fast, the time it takes for data to go from the server to the client is relatively big. It covers the parent-child hierarchy, organizing game elements with models and folders, and provides practical examples, including creating a kill brick. Upvoting indicates when questions and answers are useful. Both are incredibly helpful when you start building more complex games. LocalPlayer. Object. local character = game. There really isn't a reason to use FindFirstChild() since WaitForChild() does the same thing but waits for the target if it has not found it. Does it really matter though? Learn how to use :FindFirstChild() in Roblox Studio with this tutorial for beginners. Humanoid. In plan of optimization ChildAdded will be way better. Workspace:WaitForChild ("CoolestPartAround"). ” syntax instead of “:” I found this Trello card, which suggests adding a recursive option to :WaitForChild(). local neonparts = game. FindFirstChild is to be used when you’re 100% sure that the object that you’re looking for exists when the game loads. Health = 0, as in this case “v” is a player object, not a string. Touched:Connect(function(__PLAYER) local __CHARACTERPLAYER = Players I have a little script that handles a spider-web like function that damages player every 1 second and usually has an if statements to break the loop, it works great but i’m just wondering if it’s better off to use a repeat until or a even better a greater approach? workspace:FindFirstChild("spider web"). This is used when you are SURE that the item is parented under the other Can someone please tell me the difference between WaitForChild and FindFirstChild. Other thing to know is I’m trying to FireClient using their name through a server script. game Is there a performance / functionality difference between using :FindFirstChild(“name”,true) vs :FindFirstDescendant(“name”)? Feb 7, 2021 · I have read many times the wiki about both and i couldnt get the difference, can someone explain me? Jan 27, 2023 · That’s because WaitForChild is not a method that’s available for strings. Etc. Value = points. lua is a tool to navigate between instances using their properties and attributes, these functions are to extend the functionality of the Roblox Engine’s built in navigation tools. RemoteEvent I see the Roblox documentation using the FindFirstChild but the second option seems fine aswell. What is the true difference between wait for child, and find first child. local player = game. Nov 17, 2021 · Hey! I’m trying to get a player from game. youtube. :WaitForChild() actually counts as a task. We also may not use any of these functions, and refer to our object without the use of it. In this case you don’t know if Part is Dec 2, 2022 · Hello everyone, I’m trying to make a Framework with every accessible information. I know that wait for child waits infinitely until it finds a child but will find first child do the same? In this video, we learned about the two most common functions, :WaitForChild() and :FindFirstChild() and how to use them successfully in a script. Jan 29, 2023 · Have you checked to make sure that BodyVel exists on the server? When in test play mode, toggle the ‘Current: Client’ button to server. Sometimes with :WaitForChild() and :FindFirstChild(), I replace them with the dot notation quickly to view the properties, then retype them. Aug 2, 2023 · In regards to accessing remote functions through replicated storage what is the difference between local remoteEvent = ReplicatedStorage:FindFirstChild("RemoteEvent") vs local remoteEvent = game. Here’s an example of my code: local giveCashEvent = game:GetService(“ReplicatedStorage Sep 21, 2021 · Is it possible to use :FindFirstChild() to look for multiple instances and if so, how would this be phrased? If not is there an alternate method to detect multiple instances at once? Jan 26, 2024 · Could you also see into FindFirstChild and WaitForChild autocompleting the children like it does in studio or does that deserve its own issue? This is what I mean: Nov 17, 2021 · Hey! I’m trying to get a player from game. ClassName|ClassName is equal to the given class name. Value == true then if player:WaitForChild("Backpack"):WaitForChild("JungleStone") or player. Like And Sub!#roblox #robloxstudiotips #robloxstudio #tutorial #shortvideo #short How different between FIndFirstChild & WaitForChild #roblox #development #robloxstudio Silver Spawn 8 subscribers Subscribed Jan 18, 2019 · Which would be more efficient to use when a server is starting up? Currently, I have a fairly huge game that’s very lag intensive when the first player joins. This is commonly used in game development to ensure that the script waits for a certain object to be created before proceeding with other actions, such as setting up interactions or behaviors for the object. I hope these two pictures will do it, if not, you can search for I'm watching youtube tutorials and they are really easy and short, but THAT one was REALLY confusing. Stones. I also show how useful each function can Jan 19, 2021 · Hello all, I’ve been learning to script/ create things in Roblox Studio, but some aspects have been unclear to me. This is in a local script that is placed in StarterPlayerScripts. Adding intellisense for these would solve A good use for them is to do something like: local Part = game. Services. Remember that class members have higher precedence over children when indexing. I am trying to use FindFirstChild but I keep getting that NIL exception and I cant Oct 22, 2020 · script. (There’s more). Workspace. Best practices around FindFirstChild and WaitForChild can be answered by this thread, but I wrote one that directly addresses those habits in respect to the DataModel. However, if you have a part in something like a model or folder, you may want to do this, local Part = game. Whenever you’re using :FindFirstChild or WaitForChild, you want to make sure that the object you’re looking for actually exists before doing anything with it. Nov 13, 2023 · Hey, so I’ve been wondering about when it is most appropriate to use both WaitForChild() and FindFirstChild() and haven’t found a clear answer. Take these seperate scripts for example. Armor local stringval = player:WaitForChild(" Dec 21, 2024 · For a client-sided script is it better to do this when getting a child of a cloned instance: local bullet = bulletTemplate:Clone() local bulletTrail = bullet:FindFirstChild("Trail") -- OR LIKE THIS local bulletTrail = bullet:WaitForChild("Trail") or this? local bullet = bulletTemplate:Clone() local bulletTrail = bullet. The issue is that I cant seem to access the Humanoid Root Part. I would be grateful to any who would answer these questions for me! WaitForChild vs FindFirstChild vs Dot when finding/ referencing things in Roblox studio, I’ve noticed several ways to do it. ในคลิปๆนี้ผมจะมาอธิบายว่าฟังค์ชั่นทั้ง 3 ตัวได้แก้ WaitForChild, FindFirstChild และ GetChildren Sep 23, 2024 · Are you sure that :WaitForChild is also broken? :WaitForChild is supposed to return Instance unless a timeout is given. wait(), and will slow your script down by 1 frame each time :WaitForChild() is used. WaitForChild tends to be better for objects that may not have appeared yet (etc:waiting for humanoid on a character). Returns the first child of the Class. Dec 28, 2022 · This tutorial explains how to use the FindFirstChild method in Roblox Lua to find the first child of a given parent object. You could be trying to use :FindFirstChild () on an instance that has not “arrived” yet from the server, and that can result in the Hello there! I’m not really understanding what FindFirstChild and WaitForChild are meant to do. I had to leave some parts out due to timing reasons, but basically make sure to only use Dec 1, 2020 · I’ve always wondering. While writing the code, I realized that I have overused the WaitForChild function, and I don’t think this is optimal. It grants the model with the ability to physically walk around and interact with various components of a Roblox experience. Using WaitForChild helps your script wait for things that will appear later. FindFirstChild is sometimes necessary but you should not use it if you don’t have to since it has big performance issues. You may want to check what’s calling those functions and make sure you are passing the correct type and number of parameters. Aug 18, 2021 · There seems to be a considerable amount of flaws in your script. Oct 16, 2021 · Maybe you could do something like this game. My Roblox Profile : https://www. LocalPlayer local Character = workspace:WaitForChild(Player. Parent:Destroy() end) When you step on this coin its suppose to add a point to the point column. I have a little script that handles a spider-web like function that damages player every 1 second and usually has an if statements to break the loop, it works great but i’m just wondering if it’s better off to use a repeat until or a even better a greater approach? workspace:FindFirstChild("spider web"). So something can work 100% of the time in local testing with FindFirstChild, but Jul 31, 2024 · It’s saying nil in this case because it never found the sound and at this point music is nil. If you can give me a response, that would be greatly appreciated! Aug 8, 2024 · It’s recommended to use WaitForChild when indexing a child of an Instance, if you’re using a LocalScript. However, using WaitForChild() for something that you want to happen immediately is bad. com/playlist?list=PLMKseVFyS28VrfVEFT60jC6 FindFirstChild vs WaitForChild EXPLAINED (Roblox Studio Scripting Skit/Tip)! Let me know if you guys like these type of roblox animation-style scripting tip Nov 11, 2024 · Hi everyone, I am finishing up my game and before release, I want to optimize it as much as possible. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. I understand now though, and know Pretty self explanatory, let’s say I set a variable using :FindFirstChild(). Apr 6, 2025 · Im trying to write a power box task system for a game and im at a loss since this is happening with zero explanation really not sure whats going on here, cause i have WaitForChild around 8 other times in this script and they all work perfectly fine. Instance for whom Class. May 8, 2025 · You can write your topic however you want, but you need to answer these questions: What do you want to achieve? Keep it simple and clear! This script to send to the function whenever someone joins what place they joined from, and if not, ROBLOX. If you need anymore info Aug 28, 2024 · An “Infinite Yield” warning comes from a WaitForChild call, may we get the full code please? Aug 29, 2024 · WaitForChild is not needed in this script because it’s a server script and the instances have all loaded by the time the script runs. Hey Guys! In today's video, I explain why you should always utilize both WaitForChild and FindFirstChild best. I suspect that it is the teleporting to spawns that causes this, as a similar issue would happen where I would create an unanchored ball and it would stay stuck in the air for a prolonged gperiod of time. This Is Difference Between WaitForChild And FindFirstChild In Roblox Studio. The second argument recursive is an optional boolean (defaults to false) that will force the call to traverse down thru all of this Instance's descendants until it finds an object with a name that matches the name Jun 13, 2022 · It means the object you’re calling FindFirstChild from (Character) is nil. Jul 19, 2022 · You'll need to complete a few actions and gain 15 reputation points before being able to upvote. Should I use FindFirstChild or WaitForChild? Instance:FindFirstChild () is a more efficient alternative to WaitForChild () for objects that are assumed to exist. Parent local AimDown = false local Players = game:GetService("Players") local Player = Players. Name). Health = 0 to game. ), you save some time typing. The reason as to why is because how fast an Instance loads depends on the device the player is using’s performance Instances stored inside of ReplicatedStorage are an exception on the above, since they’re replicated as soon as the player joins the game, so using WaitForChild is Oct 24, 2024 · Im getting an error when leaving the game that says “attempt to index nil with ‘WaitForChild’” I know the cause of it, but im not sure how to fix it. You are strongly encouraged to read the replies for further discussion about FindFirstChild and WaitForChild and their use in code, as well as some pointers on replication. LocalPlayer local character = player. NeonParts:GetChildren() Event. Character:WaitForChild("JungleStone") then else local JungleBiomeStoneTool = game. Color = BrickColor. Dec 21, 2022 · I have been scripting for some time now and I still doesnt know what is difference between normal pathing and FindFirstChild method. Jun 26, 2023 · Tree. WaitForChild is to be used when something gets added in later or takes a bit to load in. Sometimes adding a waitforchild before running findfirstchild is a good idea if u ever run into this error. WaitForChild is a good replacement for times when you are sure that it is going to be a child. If it is client-side, you would need to use WaitForChild() so the client can have time to register the object. JungleStone:Clone() JungleBiomeStoneTool . Both Types have Second Arguments that you must Oct 22, 2020 · script. Here is a shortened version of my script. Nov 9, 2023 · FindFirstChild(stringval. Instance whose Class. FindFirstChild only performs one search and has a specific return value for when nothing is found. WaitForChild() yields the string until the given object exists. If it is server-side, you don’t need either of these if you are sure an item exists. This is a local script in starter player scripts and Im accessing the player using Players. Here is my example: local Bullet = workspace:FindFirstChild(“Bullet”) If I do this and I address the Bullet, is it using :FindFirstChild() each time? I understand when using RunService using :FindFirstChild() and :WaitForChild() is incredibly inefficient. explained in the video FindFirstChild vs WaitForChild Explained Briefly | Roblox Animation How to Save Player Data using Profile Store! Roblox Development METATABLES | What are they and how can we use them? Jun 3, 2021 · The method FindFirstChild. Ive tried a WaitForChild:() but then I get and Infinite yield. WaitForChild is the preferred method of waiting for a child to exist as it is more efficient and will use less resources than repeat wait() until FindFirstChild. You could try replacing FindFirstChild with WaitForChild and see if that fixes your issue Jun 7, 2023 · WaitForChild would create a decent amount of connections. Here’s an example of my code: local giveCashEvent = game:GetService(“ReplicatedStorage I was notified days ago that people were randomly freezing - were unable to move the character - but were able to move the camera and use shift lock to turn the character. The Humanoid is a special object that gives models the functionality of a character. OnServerEvent:Connect(function() neonparts. I was talking about char:WaitForChild (“HumanoidRootPart”) vs FindFirstChild (), and how this worked fine: Jan 14, 2025 · I’m trying to play an aiming animation on client side but I’m not sure how to do it, but I know it has something to do with :LoadAnimation, the script below is shortened btw. Did it actually print yes music? If not then that should explain it considering the fix you made. WaitForChild tends to only be needed on the client, unless an instance is created during runtime a script must wait for. BlockThatIsParentedUnderItem When using the dot (. What does WaitForChild mean in Roblox? Feb 19, 2025 · Learn about FindFirstChild and WaitForChild how to use them to locate objects. I am trying to use FindFirstChild but I keep getting that NIL exception and I cant This Is Difference Between WaitForChild And FindFirstChild In Roblox Studio. Same with objects (this is excluding waitforchild because i know its purpose) What’s the difference between ReplicatedStorage. Wouldn’t it be more intuitive to simply create a new function, :WaitForDescendant()? And as long as we’re on the topic, perhaps deprecate the recursive option of :FindFirstChild() and create the new function :FindFirstDescendant()? poll Apr 14, 2023 · Cool Roblox Tutorial - FindFirstChild (), FindFirstChildWhichIsA () and WaitForChild () TuneDoesStuff 537 subscribers Subscribed Nov 30, 2024 · Roblox oyun geliştirme eğitim serisinin bu videosunda, FindFirstChild() ve WaitForChild() hazır fonksiyonlarını öğrenecez. Touched:Connect(function() player = game:GetService("Players"). I wanna ask you all: Using WaitForChild in a folder ensures that all their descendants loaded? As an example of what I said: game:GetService("ReplicatedStorage"):WaitForChild("Framework"). FindFirstChild and WaitForChild are two powerful functions used to search for objects within parent containers like Workspace, Players, and StarterGui. As you can see by the title above of the topic, I would like to understand what is the difference between the functions WaitForChild and FindFirstChild, as both from my perspective seems to be a bit complicated to comprehend and analyze where I can apply into Scripts/LocalScripts… To note as well, I tried looking throughout the API Reference, yet it is not comprehensive enough. FindFirstChild is good for finding the first child with a certain name, but it also won’t break your script if that name isn’t there. Also in this case use WaitForChild vs FindFirstChild. Part wouldn’t work and only errors because you tried accessing a property of workspace that doesn’t exist. I propose that, if a script accesses an instance with a non-unique name like this, in a way that can be detected statically (e. Use :FindFirstChild and :WaitForChild instead. Like And Sub!#roblox #robloxstudiotips #robloxstudio #tutorial #shortvideo #short Jun 26, 2023 · Tree. Specifically, I Jan 29, 2025 · local seat = game. local Tool = script. I have not yet found a time to correct potential misconceptions in Aug 23, 2020 · FindFirstChild simply finds the first object that matches a given parameter. If a call to this method exceeds 5 seconds without returning, and no timeOut parameter has been specified, a warning will be printed to the output that the thread may yield indefinitely. CharacterAdded:Wait () local humanoid = character:WaitForChild ("Human… Common mistake i find with findfirstchild is that the game runs findfirstchild before said child is inserted into the game. ServerStorage. I was also asking if one is more efficient then the other. I don’t believe our engine is aware of the syntax which was used to call the method: all it knows is that the first argument is not an instance and the usual suspect in that case is that the method was called using the “. workspace. Workspace:WaitForChild ("Model"):WaitForChild ("FolderInModel"):WaitForChild ("Part") but you can do Please read the post thoroughly first. I am a beginner, so… I was just making a teleporting part when I was using WaitForChild and wanted to know the difference… workspace:Wa… This confused me a lot! Can you explain when is the best time to use the dot operator or FindFirstChild()? Example: local humanoid = character:FindFirstChild("Humanoid") --or local humanoid = character. I understand that each function has it own purpose. I tried looking through the dev forum and Reddit and I can’t seem to find any solutions to my problem. With that being said, there’s nothing that jumps out at me as being wrong with your script. Humanoid Which one is better? Jul 30, 2019 · The following thread, which was written by an engineer, better explains this dynamic in detail. g. Name) local Humanoid = Character Jan 13, 2023 · How To Script On Roblox 2023 - Episode 9 (FindFirstChild & WaitForChild) CodeBro29 88K subscribers 1. Code FindFirstChild () vs WaitForChild () adalah kunci koding ROBLOX CEPAT & AMAN. Using FindFirstChild keeps your code from breaking when things aren’t there. Sep 16, 2020 · Hey! I’m trying to find all parts in a folder, and change their colour. LocalPlayer stats = player:WaitForChild("leaderstats") points = stats:findFirstChild("Points") points. WaitForChild waits until a specified criteria or parameter matches what it’s looking for. Workspace:WaitForChild Sep 10, 2022 · findFirstChild is deprecated iirc, use FindFirstChild for performance reasons. Check under your HumanoidRootPart to make sure the instance exists on the server. There’s some things that I’m not sure if them work as intended, one of them is WaitForChild. Consider: local remoteFolderRbx = ReplicatedStorage:FindFirstChild('Remote') local avatarEditingRemoteFolderRbx = if remoteFolderRbx then remoteFolderRbx:FindFirstChild('AvatarEditing') else nil local resnapRemoteRbx = if avatarEditingRemoteFolderRbx then avatarEditingRemoteFolderRbx In this video, we learned about the two most common functions, :WaitForChild() and :FindFirstChild() and how to use them successfully in a script. PlayerGui:FindFirstChild('Music') end end the reason why you need to use FindFirstChild is because the method returns an instance or nil, if no instance of given name was found WaitForChild on the other hand is used to yield code, you can’t use it in conditions jackWorhee (Jack_V) June 22, 2025, 10:59am 15 Returns the first child of the Class. Is it more efficient to use: game:WaitForChild("Lighting") or game:GetService("Lighting") I’d rather wait for the service to be loaded in rather than spawning it in. Dec 15, 2024 · FindFirstChild returns nil if an instance doesnot exist -WaitForChild will Yield until the child is found or if it reached the timeOut you will need to use waitforchild or findfirstchild in specific cases and in other cases all you need is to reference instances with just a dot . It returns nil if an object is not found. JungleBiomeStone. FindFirstChild vs WaitForChild EXPLAINED (Roblox Studio Scripting Skit/Tip)! Let me know if you guys like these type of roblox animation-style scripting tip videos, so that I know whether or not Jul 7, 2024 · This tutorial explores the FindFirstChild and WaitForChild functions in Roblox scripting, explaining their importance in locating game objects. If they aren’t guaranteed to exist, I use FindFirstChild Using WaitForChild in server-sided scripts is optional with the exception of a few cases (such as waiting for an instance to be created by Jan 20, 2021 · A player that didn’t spawn yet won’t have a character model in the workspace. What is the issue? Include screenshots / videos if possible! :FindFirstChild() isnt working at all and everything else i have tried hasnt worked. Is there any difference? ¡Bienvenido a mi mundo de Roblox! 🌟 #roblox #gamedev #devlog #intro #robloxstudio #robloxdev #robloxdevlog #robloxdeveloper 🚀 Sobre Mí: ¡Saludos, comunidad! Me llamo Servi, y soy un I don’t think there’s much we can do here. 4K Dec 28, 2022 · This tutorial explains how to use the WaitForChild method in Roblox Lua to wait for a child instance to exist before running a script. Jan 24, 2024 · FindFirstChild() should be used when you are unsure if an object exists. Humanoids are always parented inside of a Model, and the model is expected to be an assembly of BasePart and Motor6D; the root part of the assembly is expected to be named WaitForChild () e FindFirstChild - Built-in functions - Roblox Studio Lua #16 TTech Inc 753 subscribers Subscribe Dec 11, 2024 · For client-sided scripts, I always use WaitForChild when indexing children of instances, although only if they’re guaranteed to exist, otherwise you could run into issues with infinite yields. Eg: Don’t feel comfortable with :FindFirstChild()? Use WaitForChild(), as it yields the code until an instance is found. Thanks for sticking with it — and as always, go back and rewatch or re-read parts if you Apr 18, 2025 · In this tutorial, I’ll explain how and when to use these functions: . If a timeout is given then indeed the return type should be Instance? This seems to be working correctly at least for me: I can replicate the issue related to FindFirstChild type being Instance instead of Instance? though. Using FindFirstChild or WaitForChild to get your first reference to something is fine, but if you’re going to reference that instance again and again then store a reference to it in a variable. In Roblox Lua scripting, managing objects inside the game’s hierarchy is crucial. Can someone explain it to me? This is a Roblox Animation very briefly explaining FindFirstChild vs WaitForChild in Roblox Scripting. local part = game. May 16, 2022 · FindFirstChild also has a secondary function if set to true: workspace:FindFirstChild('Part',true) This will search all descendants of “Workspace”, for an instance named “Part”, instead of just the direct children of “Workspace”. roblox. I’m not saying use FindFirstChild in placement of WaitForChild, these have two completely different functions. Character or player. So I guess what I want In this episode, we go over the difference between the two built-in functions, WaitForChild() and FindFirstChild(). Touched:Connect(function(__PLAYER) local __CHARACTERPLAYER = Players Jun 22, 2025 · print('yes music') allMusic = player. I’ve looked at some Devforum posts on the subject (most of which were painstakingly long and filled with a lot of irrelevant information. I won’t bore you with boring stuff, so let’s start! Item. With this post, I wanted to ask if someone could explain to me once and for all and in detail when I should use WaitForChild and when I could safely avoid it. (dot) [“”] (brackets) WaitForChild() FindFirstChild() FindFirstAncestor() FindFirstChildOfClass() FindFirstAncestorOfClass() FindFirstChildWhichIsA() FindFirstAncestorWhichIsA() To understand those, you first need to understand the hierarchy of roblox. Mar 10, 2019 · What is the difference between WaitForChild and FindFirstChild? WaitForChild (“x”) will continuously look for something named “x” that is a child of “Part”. WaitForChild actually calls FindFirstChild if the object already exist. com/users/11321596more Aug 15, 2025 · Using FindFirstChild, FindFirstChildOfClass, WaitForChild, etc in studio with the Tool class for example (some other classes do the same its not exclusive to Tool) in certain locations will cause the “ViewportDisplaySize is not a valid member of GuiService” warning to appear if it returns something, if it returns nil then the warning wont Yes, there is a difference between WaitForChild and repeat wait() until FindFirstChild. WaitForChild obviously works as stated above, it yields until said instance is found. Please share with us where you call the WeaponHandler functions so we can verify if you actually pass the player correctly to the function. It’s for instances only. PlayerAdded:Connect(function(player) wait(1) while wait() do if player. Plane2:FindFirstChild("Seat") is returning nil. In fact a FindFirstChild could have even set the load music in motion but, didn’t give it time to load by the point it hit music:Stop WaitForChild waits 4 a child and thus prevents the script from running b4 child is created, which can result in errors. I’m not sure with findfirstchild, but I usually use it if waitforchild doesn’t apply, or if I only want it to run if the object exists. However, in real game projects with varying dependencies on open sourced code, roblox async APIs, streaming enabled, :WaitForChild (), InvokeServer/Client, varying programmer styles, and other yielding causes are bound to show up in the code prior to character binding. PlayerStats. You can us Apr 24, 2025 · Chaining WaitForChild and FindFirstChild can generate lots of junk variables and redundant logic. Part, workspace:FindFirstChild(“Part Robloxで制作 クリエーターのみなさんのためのドキュメンテーション（仕様書）とリファレンス（参照資料）について学びましょう。 Sep 29, 2020 · Directly indexing for children is bad practice anyways, it is not forwards compatible as you are assuming Roblox won’t introduce a member with the same name as the child. PlayerAdded:Connect(function(player) local armorFolder = game. Is a method of the class Instance which the class Workspace inherits. Jan 21, 2021 · Hi, Ive been making a snowy island and I wanted to detect if the player is in the water and then the start to lose health because the water is really cold. new("Lime green") end) Any ideas on why this doesn’t work? I have also tried :GetDescendants() and that did not work either. Consider: local remoteFolderRbx = ReplicatedStorage:FindFirstChild('Remote') local avatarEditingRemoteFolderRbx = if remoteFolderRbx then remoteFolderRbx:FindFirstChild('AvatarEditing') else nil local resnapRemoteRbx = if avatarEditingRemoteFolderRbx then avatarEditingRemoteFolderRbx Aug 29, 2021 · There’s some pretty big differences between FindFirstChild and WaitForChild which you have to understand in order to properly use them. Bu fonksiyonlar ile oyun içerisind I just spent hours trying to diagnose a problem where Rojo had accidentally created a ModuleScript and a Folder with the same name, and any scripts which tried to access the Folder instead accessed the ModuleScript. If anyone can Jul 28, 2019 · Please do keep the following in mind before reading or linking! Some parts of this thread provide slightly inaccurate, unnecessary or outdated information. Jun 28, 2025 · This is a super beginner-friendly and essential concept in Roblox scripting. Event and ReplicatedStorage:FindFirstChild ("Event"). And on your script you should change game. Hi! Welcome to my channel. Apr 10, 2025 · In Roblox, “wait for child” is a scripting function used to pause the script’s execution until a specific child object within a parent object is found. Like And Sub!#roblox #robloxstudiotips #robloxstudio #tutorial #shortvideo #short Check this video out: https://youtube. Aug 19, 2020 · However, if the script works fine without WaitForChild: (), that’s completely fine and don’t be afraid to not use it. Example of unnecessary FindFirstChild usage (9 calls): May 6, 2021 · Yeah, sorry, I should have been more specific. As for the reason this occurs, Character is a Nullable (nilable) object reference. For :WaitForChild() and :FindFirstChild(), it should only work if Studio can immediately find the objects. Workspace:FindFirstChild(player. If not then it yields. Full example: local Bullet = workspace:FindFirstChild Dec 28, 2024 · hey there, just so you know, YES you can actually use findfirstchild after using it again, keep in mind that if you’d like to minimize errors with the script saying its null or something then you can use :WaitForChild(), but if you’re willing to use that i’m 90% sure they don’t work in if [code] then end statements. The relevant thread for WaitForChild is paused until that criteria is found. Etc I’m trying to optimize my code and wondering if using “:FindFirstChild()” too much causes lag. Players.