Separating multiple if conditions with commas in Swift

Question

We already know multiple optional bindings can be used in a single if/guard statement by separating them with commas, but not with && e.g.

Answer 1

https://docs.swift.org/swift-book/ReferenceManual/Statements.html#grammar_condition-list

The Swift grammar says that the if statement condition-list can be composed by multiple condition separated by commas ,

A simple condition can be a boolean expression, a optional-binding-condition or other things:

So, using the comma to separate multiple expressions is perfectly fine.