I suppose I wasn't entirely clear. "where" is syntactic sugar for "let...in", pattern matching is syntactic sugar for "case", and guards are syntactic sugar for "if..then..else" and/or "case" (for pattern guards)
In fact, the whole reason for the existence of "where" is so that it can attach at a higher-level scope and make use of the other syntactic sugar (like guards). Also, I find the postfix definitions in "where" to generally be more readable, but that is a matter of taste. -- ryan On Sat, Oct 31, 2009 at 11:33 AM, Chaddaï Fouché <chaddai.fou...@gmail.com>wrote: > On Sat, Oct 31, 2009 at 8:09 PM, Ryan Ingram <ryani.s...@gmail.com> wrote: > > > > "where" is just syntactic sugar for "let...in" > > That's not perfectly true : "where" and "let...in" don't attach to the > same syntactic construction, "where" attaches to a definition and can > works for several guard clauses whereas "let ... in expression" is an > expression in itself. > > -- > Jedaï >
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