Posted by Pharo Smalltalk Users mailing list on Sep 21, 2020; 6:16am
URL: https://forum.world.st/where-are-the-nills-come-from-and-how-do-I-get-rid-of-them-tp5122291.html

Hello,

I have to make a word count from a sentence so I did this :

countWordsSentence: aString
     | splitted result |
     splitted := aString splitOn: [ :each | ', ' includes: each ].
     result := splitted
         inject: Bag new
         into: [ :wordBag :word |
             wordBag
                 add: word;
                 yourself ].
     ^ result valuesAndCounts

but now I see that the Bag is containing nills.
I tried to delete them by doing this :   cleaned := result reject:
[:each | each isNil]

but to my surprise the nills are still there,
Why is that happening and what is the best way to delete them ?

Roelof