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walkBack follow-up: Mention fold's potential in the examples

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Sebastian Wilzbach 2017-03-02 02:18:07 +01:00
parent 8b4f16182d
commit 0f7952c4d8
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3
std/algorithm/iteration.d
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@ -3206,6 +3206,9 @@ if (fun.length >= 1)
// Can be used in a UFCS chain // Can be used in a UFCS chain
assert(arr.map!(a => a + 1).fold!((a, b) => a + b) == 20); assert(arr.map!(a => a + 1).fold!((a, b) => a + b) == 20);
// Return the last element of any range
assert(arr.fold!((a, b) => b) == 5);
} }
@safe @nogc pure nothrow unittest @safe @nogc pure nothrow unittest