How is type casting done with non-strict equality?

Question

JavaScript

How does such a comparison take place? Why does the console output truein such a comparison?
console.log(!!"false" == !!"true");

Answer 1

Non-empty strings in logical operations (you use boolean negation) are cast to true.
(!!"false" == !!"true") → (!!true == !!true) → (!false == !false) → (true == true) →
true nothing to do with it, you have both values ​​​​when compared, they have the same type, boolean.