Feature!

collect: forms a new collection of the same kind as its receiver. In this case a set. As the result of your collect:

#(1 2 3) asSet collect: #odd)��

is booleans, the resulting set will contain only to elements (the duplicate odd resulting in true is removed).��

collect: thenDo: applies the collect-block to each element of the receiver, and then applies the do to each of those results. You can see the implementation of collect:thenDo: in class Collection.

Best,

Kasper

On 7 September 2019 at 17.22.03, Herby Voj��k (herby@mailbox.sk) wrote:

Hello!

----
(#(1 2 3) asSet collect: #odd)
do: [ :each | Transcript show: each; cr ]

> true
> false

----

#(1 2 3) asSet collect: #odd
thenDo: [ :each | Transcript show: each; cr ]

> true
> false
> true
----

Bug or feature?

Herby