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Functional Programming

Functional Programming

Functional Programming concept (in JavaScript). Internal share in RingCentral.

Howard, Chang

August 23, 2016
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Transcript

  1. Outline • Why (1 mins) • What (20 mins) •

    How (10 mins) • Real world use cases (? mins)
  2. FP

  3. What • Pure function • Function composition • Curry •

    Partial application • Monads & Functor • Immutability
  4. Pure function • The function always evaluates the same result

    value given the same argument value(s). • Evaluation of the result does not cause any semantically observable side effect or output
  5. Pure function • The function always evaluates the same result

    value given the same argument value(s). • Evaluation of the result does not cause any semantically observable side effect or output. • Function must return something.
  6. Monad & Functor • "Once you understand monads, you start

    seeing them everywhere” - Eric Kidd
  7. Elm