Oh... the expected output was 'e1, e2, e3 and e4', I read "all" instead of "and".

Now it makes sense.

Esteban A. Maringolo

On Thu, May 16, 2019 at 5:09 PM Roelof Wobben <r.wobben@home.nl> wrote:

and this is working

String
������ ������ ������ ������ streamContents: [ :stream |
������ ������ ������ ������ ������ gifts allButLast
������ ������ ������ ������ ������ ������ do: [ :each | stream nextPutAll: each ]
������ ������ ������ ������ ������ ������ separatedBy: [ stream
������ ������ ������ ������ ������ ������ ������ ������ nextPut: $,;
������ ������ ������ ������ ������ ������ ������ ������ space ].
������ ������ ������ ������ ������ stream
������ ������ ������ ������ ������ ������ nextPut: $,;
������ ������ ������ ������ ������ ������ nextPutAll: ' and ';
������ ������ ������ ������ ������ ������ nextPutAll: gifts last ] ]

Thanks Estaban for the hint.

Roelof



Op 16-5-2019 om 21:51 schreef Roelof Wobben:

I think this is better

��^�� String streamContents: [:stream |

 gifts 
    do: [:each | stream nextPutAll: each ]
    separatedBy: [ stream nextPut: $,; space ]
  stream nextputAll: 'all'; nextPut: ','; nextPut: gifts last] 

Op 16-5-2019 om 21:47 schreef Roelof Wobben:

oke, and then do something like :

stream :=

String streamContents: [:stream |
  gifts 
    do: [:each | stream nextPutAll: each ]
    separatedBy: [ stream nextPut: $,; space ]

����������

stream nextputAll: 'all'; nextPut: ','; nextPut: gifts last

]

stream nextputAll: 'all' 
stream nextPut: ','
stream nextPut: gifts last


Roelof

Op 16-5-2019 om 21:30 schreef Esteban Maringolo:

Maybe this is a better way to build what you want.

String streamContents: [:stream |
  gifts 
    do: [:each | stream nextPutAll: each ]
    separatedBy: [ stream nextPut: $,; space ]
]

Esteban A. Maringolo

On Thu, May 16, 2019 at 4:21 PM Roelof Wobben <r.wobben@home.nl> wrote:

Hello,

Im testing all my solutions with critiz and can solve almost all problems,

Only this one I cannot figure out.

I have this code

(gifts allButLast
                inject: ''
                into: [ :str :each | str , each , ', ' ]) , 'and ' , gifts last ]

and critiz says I should use a stream .

How can I make this work ? 

Roelof