prefer-idiv

Replaces math.floor(x / y) with .idiv() in roblox-ts code.

Rule details Suggestion

This rule reports calls to the global math.floor when the call has exactly one argument and that argument is a / binary expression. The fix turns the left side into the receiver and keeps the right side as the argument.

It does not report shadowed math bindings, optional calls, or other math.floor(...) cases that are not a direct division expression.

Parentheses are preserved when needed

Expressions like math.floor((a + b) / c) fix to (a + b).idiv(c).

Examples

Incorrect

const quotient = math.floor(x / y);
const result = math.floor((a + b) / c);
const value = math.floor(100 / 3);

Correct

const quotient = x.idiv(y);
const result = (a + b).idiv(c);
const value = (100).idiv(3);

Related rules

no-print Catches another common roblox-ts habit