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Re: I'm confused by what s.length.toString.length means
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Posted: Nov 2, 2016 11:45 PM
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> On page 96 of the 3rd Edition PDF, there is this
> expresssion
>
> def widthOfLength(s: String) = s.length.toString.length
>
> My understanding is that it returns the length of passed
> in string as a String instead of an Int.
>
> Therefore from the REPL, if I do e.g.
> "Test".length.toString.length, I expect the
> value 4 of type String instead of Int.
> However it returns 1 as Int.
>
> Am I missing something?
s.length.toString.length
s ="test"
s.lenght = 4
s.length.toString = "4" --> this is just a string now
s.length.toString.length = 1 --> lenght of string "4" is 1.
if s.length.toString = "23" then
then
s.length.toString.length = 2 --> lenght of string "23" is 2.
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