How do method cascades work exactly in dart?

Question

As stated in the dart article:

The \"..\" syntax invokes a method (or setter or getter) but discards the result, and returns the original receiver ins

Answer 1

A..B().C() means calling B() on A, then calling C() based on the return value of A.B().

A..B().C()..D().E() means calling B() on A, then calling C() based on the return value of A.B(), assume it is A_B, then calling D() on A_B, i.e. A_B.D(), assume the return value of it is A_B_D, then finally do A_B_D.E().