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andrewharmellaw/tracing_trace_4.scala

Last active December 3, 2015 11:17
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tracing_trace_4.scala
foldLeft(List(1,2,3), 0) (_ + _) // step 1 - where we start
foldLeft(1 :: 2 :: 3 :: Nil, 0) (_ + _) // micro-step 1(a)
foldLeft(2 :: 3 :: Nil, f(0, 1)) (_ + _) // micro-step 1(b)
foldLeft(2 :: 3 :: Nil, (0 + 1)) (_ + _) // step 2 - where we end up
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