How to use a Maid class on Roblox to manage state

The Maid class on Roblox is a useful class that I use to help manage state, especially in regards to signals or events. Be warned: This is a fairly technical article!

I use Maid extensively in Jailbreak. It vastly simplifies the cleaning up of events/objects, and gives me confidence that I will avoid memory leaks.
~ @badcc, developer of Jailbreak

Read it here:

You can download the Maid source code here:

Let me know if you have any questions about how to use maids, or what good patterns are in them!

21 Likes

Bless Maids. They’re so helpful in my upcoming RPG where there’s a lot of events tied to animations and time-sensitive things. It’d probably be leaking memory out the sides if not for Maids keeping everything nice and tidy.

2 Likes

The article imo was more focused on the API and usefulness of maids than addressing the actual problem it solves.

Giving some code and then explaining how it might cause issues doesn’t give a very in-depth analysis on what the code is doing and why there is an issue.

2 Likes

Yeah. I’m not super satisfied with the overall article quality. I might do a few case studies to demonstrate how useful it is as a pattern.

The problem is for beginner programmers Maids aren’t that great. It’s only as you scale up in advance usage that Maids become more and more useful. They have abstract away a lot of complexity that beginner programmers don’t tend to have, and create impact mostly in areas that have long-term consequences, not short term ones.

5 Likes

Make sure you name things appropriately rather than something arbitrary like “GivePromise”, especially when designating said system for others to use, as no one can read your mind to find out what that means.