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4) In lectures, we saw two versions of a left-associative fold, foldl which is lazy in its arguments, and foldl' which applies the combining operator strictly. Explain the difference between these two versions, and use an example to illustrate why foldl' is typically preferred.

4) In lectures, we saw two versions of a left-associative fold, foldl which is lazy in its arguments, and foldl' which applies the combining operator strictly. Explain the difference between these two versions, and use an example to illustrate why foldl' is typically preferred.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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(d) In lectures, we saw two versions of a left-associative fold, foldl which is lazy in its arguments, and foldl' which applies the combining operator strictly. Explain the difference between these two versions, and use an example to illustrate why foldl' is typically preferred.
Transcribed Image Text:(d) In lectures, we saw two versions of a left-associative fold, foldl which is lazy in its arguments, and foldl' which applies the combining operator strictly. Explain the difference between these two versions, and use an example to illustrate why foldl' is typically preferred.
For example |> count [1, 2, -1, 4, 5] 3 |> count [5, 4, 3] > count []
Transcribed Image Text:For example |> count [1, 2, -1, 4, 5] 3 |> count [5, 4, 3] > count []
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