Functional Programming with JavaScript

What Functional programming in JavaScript?

Functional programming is a paradigm that has recently gained popularity because it allows you to write code that is more modular, reusable, and easier to maintain. Functional programming is a programming paradigm that relies on two main concepts.

• Firstly, code is written in the form of functions that operate on data and do not change any parameters. Instead of modifying existing data, new data is created.

• Secondly, in functional programming, functions are treated as first-class citizens, meaning they can be used as parameters and return values. This allows for easy composition of the code and the use of different functions together.

The main goals of functional programming are as follows:

• Modularity: In functional programming, the code is modular. This allows you to easily use a specific task or operation by combining different functions. Modularity makes the code easier to read and maintain.

• Reusability: Functional programming promotes the use of reusable functions. This allows you to reuse the same function multiple times and avoid code duplication. It enhances code management and ease of writing.

• Maintainability: In functional programming, functions work without changing any parameters. This makes it easier to add and modify code and effectively manage the daily productivity of the code.

These main goals of functional programming help in writing a program that is modular, reusable, and easily maintainable.

Functions as First-Class Citizens
Higher-Order Functions
Pure Functions
Immutability
Recursion

Note: The above topics have been discussed in sequence earlier.

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