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functional programming concepts

Deepika Sahu answered on December 29, 2022 Popularity 6/10 Helpfulness 1/10

answer functional programming concepts

functional programming concepts

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Advantages and Disadvantages of Functional programming

Advantages:  

Pure functions are easier to understand because they don’t change any states and depend only on the input given to them.
Whatever output they produce is the return value they give. 
Their function signature gives all the information about them i.e. their return type and their arguments.
The ability of functional programming languages to treat functions as values and pass them to functions as parameters make the code more readable and easily understandable.
Testing and debugging is easier.
Since pure functions take only arguments and produce output, they don’t produce any changes don’t take input or produce some hidden output. 
They use immutable values, so it becomes easier to check some problems in programs written uses pure functions.
It is used to implement concurrency/parallelism because pure functions don’t change variables or any other data outside of it.
It adopts lazy evaluation which avoids repeated evaluation because the value is evaluated and stored only when it is needed.
Disadvantages:  

Sometimes writing pure functions can reduce the readability of code.
Writing programs in recursive style instead of using loops can be bit intimidating.
Writing pure functions are easy but combining them with the rest of the application and I/O operations is a difficult task.
Immutable values and recursion can lead to decrease in performance.
Applications: 

It is used in mathematical computations.
It is needed where concurrency or parallelism is required.

Popularity 6/10 Helpfulness 1/10 Language javascript

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Contributed on Dec 29 2022

Deepika Sahu

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functional programming concepts

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