Monads for functional programming

  • Philip Wadler
Conference paper
Part of the NATO ASI Series book series (NATO ASI F, volume 118)


The use of monads to structure functional programs is described. Monads provide a convenient framework for simulating effects found in other languages, such as global state, exception handling, output, or non-determinism. Three case studies are looked at in detail: how monads ease the modification of a simple evaluator; how monads act as the basis of a datatype of arrays subject to in-place update; and how monads can be used to build parsers.


programming languages functional programming category theory monads pure vs. impure functional languages semantics state parsers. 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1993

Authors and Affiliations

  • Philip Wadler
    • 1
  1. 1.Department of Computing ScienceUniversity of GlasgowGlasgowScotland

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