C9 Lectures: Dr. Erik Meijer - Functional Programming Fundamentals Chapter 12 of 13
In Chapter 12, Lazy Evaluation, Dr. Meijer takes us on a journey into the world of order of evaluation (when expressions are evaluated). In the case of lazy evaluation, computation is delayed until the result of the computation is known to be required.
Most programming languages that most of you use day to day use eager or strict evaluation, which is the
opposite of lazy evaluation. In the strict evaluation world, expressions are evaluated as soon as they are bound to a variable (this is also known as greedy evaluation). In Haskell, laziness is first class!
Tune in. Learn and enjoy!
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