Is Javascript A Functional Language?

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Functional style programming focuses on pure math functions, immutable data, logic flow, and data entry. Functional programming languages ‚Äã‚Äãare the opposite of object-oriented ones, which focus on changing data and changing states.

Functional programming languages ‚Äã‚Äãare everywhere and the vast majority of internet uses them. In fact, I am right now using a functional programming language to write this article.

Learning what a functional programming language is and knowing its pros and cons is helpful for anyone involved in computing or programming.

Let ’s take a moment to define this programming paradigm (and paradigms in general), then look at some of the pros and cons of functional programming.

What is a programming paradigm?

Since computers are, at their core, machines, we need a good way to communicate with them. However, the more abstract of ones and zeros, the more specialized a language becomes. This is why we have so many high level languages, because they all work a little differently and are all suitable for different tasks.

Enter the programming paradigm, which is a means of classifying programming languages ‚Äã‚Äãby their central theory or methodology for managing data. Languages qualify for a paradigm by having a set of defining principles. There are many programming paradigms, many of which overlap or contain other paradigms. The two main paradigms are functional and object oriented, but there are many other ways of dealing with data not considered by these two paradigms.

What is functional programming?

Functional programming is one of the two best known programming paradigms , the other object being oriented programming. In short, functional programming focuses on pure mathematical functions and immutable data - that is, data that cannot be changed after it is created. It has no state, which means that the only thing that changes in a functional program is the entry.

Since there has been no state that change with objects, in functional programming you could conceptually change in code order and still have the same output. It’s like multiplying eight numbers together, no matter what order you multiply them, you always get the same result

In this sense, functional programming is all about flow. Entries come from above and results fall below. This contrasts with object-oriented programming, which is more of a changing state machine, with unique and changing objects.

Functional programming falls under the umbrella of the imperative programming paradigm, the opposite of declarative programming where oriented programming resides.

Functional programming has been around for a while longer than object-oriented programming since the Turing machine . two generations, but recently made a comeback in JavaScript , which is paradigm independent but was considered a more functional language than a an object oriented.

principles of definition functional programming

functional programming is based on principles of definition, on which all languages ‚Äã‚Äãthat adhere to this methodology are based:

pros and cons? the functional programming

Like all programming paradigms, the functional programming has its advantages and disadvantages. Let’s take a look at these to understand our best use case for functional programming.

Pro

Minus

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functional programming languages ‚Äã‚Äã

functional programming is much older than object-oriented programming and has made a comeback to the languages ‚Äã‚Äãon this list in recent years.

Although functional programming occupies a more special place than object oriented languages, its growing popularity implies the demand for more functional programmers in an area where there is very little. Learning functional programming would put you in a rewarding job market that is unique and fun in itself.

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We hope this article has helped you to resolve the problem. Apart from Is Javascript A Functional Language?, check other __main__ Python module-related topics.

Want to excel in Python? See our review of the best Python online courses 2023. If you are interested in Data Science, check also how to learn programming in R.

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Carlo Zelotti

Prague | 2023-03-29

Thanks for explaining! I was stuck with Is Javascript A Functional Language? for some hours, finally got it done 🤗. Checked yesterday, it works!

Xu OConnell

Berlin | 2023-03-29

I was preparing for my coding interview, thanks for clarifying this - Is Javascript A Functional Language? in Python is not the simplest one. Will get back tomorrow with feedback

Frank Zelotti

Abu Dhabi | 2023-03-29

Thanks for explaining! I was stuck with Is Javascript A Functional Language? for some hours, finally got it done 🤗. I am just not quite sure it is the best method

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