JS other type value converted to a Boolean type rule

As recently as in the written test, found a lot of other types of conversion to a Boolean type of topics, so summarize!

First, the string type is converted to Boolean1. The case that the conversion J result is true

① any non-empty string

PS: Blank string also returns True

2. Case where the conversion result is false

① empty string

Second, the number type is converted to Boolean1. case where the conversion result is true

① any non-0 numeric value (including infinity)

2. Case where the conversion result is false

①0

②nan

Iii. the type of object is converted to Boolean1. case where the conversion result is true

① any object (including empty objects)

② array objects (including empty arrays)

③ Regular Expressions

2. Case where the conversion result is false

① Empty objects

PS: Here to distinguish with the previous empty object {}, an empty object indicates that the object was created, but there is nothing in it, and the empty object represents the creation, which is a null

Iv. undefined type converted to Boolean1. can only return false

JS other type value converted to a Boolean type rule