Empty arrays seem to equal true and false at the same time

Answer 1

Example:

const array = []
const boolValueOfArray = !!array // true

It happens because

ToNumber(ToPrimitive([])) == ToNumber(false)  

1. [] is empty Array object → ToPrimitive([]) → "" → ToNumber("") → 0
2. ToNumber(false) → 0
3. 0 == 0 → true