Floor division operator //

[petrihakkinen]

Hi! Are there plans to add floor division operator // to Luau? I think it would make sense to add it:

1. Syntactic convenience but it also makes code easier to read
2. Forgetting math.floor has been a common source of subtle bugs for me. For example, halve the size of some object like a texture or UI element, which works correctly only if the size is even (which is common for textures but not always the case!)
3. At least in my projects math.floor is by far the most frequently used math function (see stats below). I've actually renamed math.floor to floor in a couple of projects to make it little bit easier to use but it feels hacky.
4. The implementation could probably be faster (if floor division would be a new VM instruction)
5. Later Lua versions have it, so translating code would be easier

Some stats from a shipped game:

math.floor: 461 matches
math.abs: 85 matches
math.sin: 197 matches
math.cos: 106 matches

p.s. I don't agree with the rationale given on the Compatibility page :-) ("no strong use cases, syntax overlaps with C comments")

[petrihakkinen]

No need to comment on this thread. I'll write a proper RFC for this.

[vegorov-rbx]

Are there plans to add floor division operator // to Luau?

No plans for that at the moment.

[petrihakkinen]

The RFC is now here: #832