These are all good suggestions guys - but don���t you find it odd that there isn���t the mirror function #excludes: which would make all of them read more naturally?

I know we can���t have all combinations- but this one really struck me as odd by its absence (particularly when I was comparing the elegance of my little coding solution to other languages).

Should I propose it���s inclusion in Collection?

Tim

Sent from my iPhone

> On 16 Mar 2019, at 08:43, Sven Van Caekenberghe <sven@stfx.eu> wrote:
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>> On 15 Mar 2019, at 23:06, Tim Mackinnon <tim@testit.works> wrote:
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>> aString detect: [:c | ($0 to: $1) excludes: c] ifFound: aBlock. (Evaluate a block if the string isn���t all 0 and 1���s)
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> (aString allSatisfy: [ :each | '01' includes: each ]) not.
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>