Something less imperative than this:
def subs(s: String) = for {start <- 0 to s.length; end <- i to s.length} yield s.substring(start, end)
Something less imperative than this: def subs(s: String) = for {start <- 0 to
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Something less imperative than this:
def subs(s: String) = for {start <- 0 to s.length; end <- i to s.length} yield s.substring(start, end)
If you want to remove empty strings:
But note that this incantation is not so obvious to the reader, as @Randall Schulz points out in comments. Your original version, on the other hand, is instantly clear.