Today I am going to talk about how to design Pure Function and help you understand the benefits of pure function.

Nowadays Functional Programming is getting a lot of attention due to the advantages it offers like parallelism, easier testing, _predictability _ and many others.

Pure functions is a concept mainly used in functional programming languages but it can be applied in any programming paradigm

Definition

Pure functions can be defined as

• The function always returns the same value for the same inputs. The output is only determined by its input values.
• A function where the return value is only determined by its input values, without observable side effects

Characteristics Of Pure Function

• Function should always return a result.
• Function must only depend on their inputs. That means this function should not use any other value than the function inputs to calculate the result
• Pure functions cannot have other side effects than the computation of its return value.
• Referentially transparent: An expression is said to be referentially transparent if
• it can be replaced with its corresponding value without changing the
• program’s behaviour.

#functional-programming #lambda-function #functor #kotlin #programming #functional-components #coding #coding-skills