JavaScript implicit type conversion steps

The implicit type conversion, which is said here, is the conversion caused by = =.

1. Returns False if there is a Nan
2. And see if there's a Boolean, and Boolean converts the Boolean to a number.
3. Then see if there is a string, there are three cases, the other is the object, the object is converted using ToString, the object is a number, a string to a number, the other side is a string, direct comparison; other returns false
4. If it is a number, the object is an object, and the object is compared to valueof, and all others return false.
5. Null, undefined does not perform type conversions, but they are both equal

JavaScript implicit type conversion steps