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Clojure

1.9K
1.4K
+ 1
1.1K
JavaScript

349.6K
266.1K
+ 1
8.1K
Perl

3.4K
928
+ 1
574

Clojure vs JavaScript vs Perl: What are the differences?

## Key Differences between Clojure, JavaScript, and Perl

Clojure, JavaScript, and Perl are three different programming languages each with its own unique features and use cases. In this comparison, we will address the key differences between them.

1. **Paradigm**: Clojure is a functional programming language that emphasizes immutable data structures and functions as first-class citizens. JavaScript is a multi-paradigm language that supports object-oriented, imperative, and functional programming. Perl, on the other hand, is a scripting language known for its powerful text manipulation capabilities.

2. **Syntax**: Clojure has a Lisp-like syntax which is characterized by its use of parentheses and prefix notation. JavaScript has a C-style syntax with curly braces and semicolons, while Perl has a more flexible syntax that allows for both procedural and object-oriented programming styles.

3. **Concurrency**: Clojure has built-in support for concurrent programming with its software transactional memory system. JavaScript relies on asynchronous programming using callbacks, promises, or async/await for handling concurrency. Perl provides tools for managing concurrent tasks but lacks built-in concurrency support.

4. **Community and Ecosystem**: JavaScript has a large and active community with a vast ecosystem of libraries and frameworks like React and Node.js. Clojure has a smaller but dedicated community focused on functional programming and tools like Leiningen and ClojureScript. Perl has a long-standing community with CPAN (Comprehensive Perl Archive Network) offering a wide range of modules for various tasks.

In Summary, while Clojure excels in functional programming and concurrency, JavaScript is versatile with its multi-paradigm approach, and Perl is known for its text processing capabilities and flexibility in syntax.
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Pros of Clojure
Pros of JavaScript
Pros of Perl
  • 117
    It is a lisp
  • 100
    Persistent data structures
  • 100
    Concise syntax
  • 90
    jvm-based language
  • 89
    Concurrency
  • 81
    Interactive repl
  • 76
    Code is data
  • 61
    Open source
  • 61
    Lazy data structures
  • 57
    Macros
  • 49
    Functional
  • 23
    Simplistic
  • 22
    Immutable by default
  • 20
    Excellent collections
  • 19
    Fast-growing community
  • 15
    Multiple host languages
  • 15
    Simple (not easy!)
  • 15
    Practical Lisp
  • 10
    Because it's really fun to use
  • 10
    Addictive
  • 9
    Community
  • 9
    Web friendly
  • 9
    Rapid development
  • 9
    It creates Reusable code
  • 8
    Minimalist
  • 6
    Programmable programming language
  • 6
    Java interop
  • 5
    Regained interest in programming
  • 4
    Compiles to JavaScript
  • 3
    Share a lot of code with clojurescript/use on frontend
  • 3
    EDN
  • 1
    Clojurescript
  • 1.7K
    Can be used on frontend/backend
  • 1.5K
    It's everywhere
  • 1.2K
    Lots of great frameworks
  • 896
    Fast
  • 745
    Light weight
  • 425
    Flexible
  • 392
    You can't get a device today that doesn't run js
  • 286
    Non-blocking i/o
  • 236
    Ubiquitousness
  • 191
    Expressive
  • 55
    Extended functionality to web pages
  • 49
    Relatively easy language
  • 46
    Executed on the client side
  • 30
    Relatively fast to the end user
  • 25
    Pure Javascript
  • 21
    Functional programming
  • 15
    Async
  • 13
    Full-stack
  • 12
    Setup is easy
  • 12
    Its everywhere
  • 11
    JavaScript is the New PHP
  • 11
    Because I love functions
  • 10
    Like it or not, JS is part of the web standard
  • 9
    Can be used in backend, frontend and DB
  • 9
    Expansive community
  • 9
    Future Language of The Web
  • 9
    Easy
  • 8
    No need to use PHP
  • 8
    For the good parts
  • 8
    Can be used both as frontend and backend as well
  • 8
    Everyone use it
  • 8
    Most Popular Language in the World
  • 8
    Easy to hire developers
  • 7
    Love-hate relationship
  • 7
    Powerful
  • 7
    Photoshop has 3 JS runtimes built in
  • 7
    Evolution of C
  • 7
    Popularized Class-Less Architecture & Lambdas
  • 7
    Agile, packages simple to use
  • 7
    Supports lambdas and closures
  • 6
    1.6K Can be used on frontend/backend
  • 6
    It's fun
  • 6
    Hard not to use
  • 6
    Nice
  • 6
    Client side JS uses the visitors CPU to save Server Res
  • 6
    Versitile
  • 6
    It let's me use Babel & Typescript
  • 6
    Easy to make something
  • 6
    Its fun and fast
  • 6
    Can be used on frontend/backend/Mobile/create PRO Ui
  • 5
    Function expressions are useful for callbacks
  • 5
    What to add
  • 5
    Client processing
  • 5
    Everywhere
  • 5
    Scope manipulation
  • 5
    Stockholm Syndrome
  • 5
    Promise relationship
  • 5
    Clojurescript
  • 4
    Because it is so simple and lightweight
  • 4
    Only Programming language on browser
  • 1
    Hard to learn
  • 1
    Test
  • 1
    Test2
  • 1
    Easy to understand
  • 1
    Not the best
  • 1
    Easy to learn
  • 1
    Subskill #4
  • 0
    Hard 彤
  • 72
    Lots of libraries
  • 66
    Open source
  • 61
    Text processing
  • 54
    Powerful
  • 49
    Unix-style
  • 47
    Regex
  • 37
    Stable
  • 32
    Concise syntax
  • 29
    Hackerish
  • 22
    Easy to use
  • 15
    Swiss army chainsaw
  • 13
    Code Less Do More
  • 12
    CPAN
  • 9
    Freedom
  • 8
    All purpose
  • 5
    Many ways to do it
  • 5
    Familiar
  • 5
    Readability
  • 5
    Community
  • 4
    Modular
  • 4
    Smart (does alot for you)
  • 4
    Object-Oriented
  • 3
    Postmodern
  • 3
    It's the best one-off task language
  • 2
    For a man
  • 2
    Good man pages
  • 1
    Auto case variables
  • 1
    Single Source Library (CPAN)
  • 1
    Multi-threaded support
  • 1
    Hashes
  • 1
    C-style
  • 1
    Multiparadigm

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Cons of Clojure
Cons of JavaScript
Cons of Perl
  • 11
    Cryptic stacktraces
  • 5
    Need to wrap basically every java lib
  • 4
    Toxic community
  • 3
    Good code heavily relies on local conventions
  • 3
    Tonns of abandonware
  • 3
    Slow application startup
  • 1
    Usable only with REPL
  • 1
    Hiring issues
  • 1
    It's a lisp
  • 1
    Bad documented libs
  • 1
    Macros are overused by devs
  • 1
    Tricky profiling
  • 1
    IDE with high learning curve
  • 1
    Configuration bolierplate
  • 1
    Conservative community
  • 0
    Have no good and fast fmt
  • 22
    A constant moving target, too much churn
  • 20
    Horribly inconsistent
  • 15
    Javascript is the New PHP
  • 9
    No ability to monitor memory utilitization
  • 8
    Shows Zero output in case of ANY error
  • 7
    Thinks strange results are better than errors
  • 6
    Can be ugly
  • 3
    No GitHub
  • 2
    Slow
  • 4
    Messy $/@/% syntax
  • 3
    No exception handling
  • 2
    Bad OO support
  • 2
    "1;"
  • 2
    No OS threads
  • 1
    Variables are global by default
  • 1
    Copy-on-create for interpreter-based threads
  • 1
    Barewords
  • 1
    Errors/warnings are ignored by default

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What is Clojure?

Clojure is designed to be a general-purpose language, combining the approachability and interactive development of a scripting language with an efficient and robust infrastructure for multithreaded programming. Clojure is a compiled language - it compiles directly to JVM bytecode, yet remains completely dynamic. Clojure is a dialect of Lisp, and shares with Lisp the code-as-data philosophy and a powerful macro system.

What is JavaScript?

JavaScript is most known as the scripting language for Web pages, but used in many non-browser environments as well such as node.js or Apache CouchDB. It is a prototype-based, multi-paradigm scripting language that is dynamic,and supports object-oriented, imperative, and functional programming styles.

What is Perl?

Perl is a general-purpose programming language originally developed for text manipulation and now used for a wide range of tasks including system administration, web development, network programming, GUI development, and more.

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Scala
Scala is an acronym for “Scalable Language”. This means that Scala grows with you. You can play with it by typing one-line expressions and observing the results. But you can also rely on it for large mission critical systems, as many companies, including Twitter, LinkedIn, or Intel do. To some, Scala feels like a scripting language. Its syntax is concise and low ceremony; its types get out of the way because the compiler can infer them.
Haskell
It is a general purpose language that can be used in any domain and use case, it is ideally suited for proprietary business logic and data analysis, fast prototyping and enhancing existing software environments with correct code, performance and scalability.
Common Lisp
Lisp was originally created as a practical mathematical notation for computer programs, influenced by the notation of Alonzo Church's lambda calculus. It quickly became the favored programming language for artificial intelligence (AI) research. As one of the earliest programming languages, Lisp pioneered many ideas in computer science, including tree data structures, automatic storage management, dynamic typing, conditionals, higher-order functions, recursion, and the self-hosting compiler. [source: wikipedia]
Elixir
Elixir leverages the Erlang VM, known for running low-latency, distributed and fault-tolerant systems, while also being successfully used in web development and the embedded software domain.
Julia
Julia is a high-level, high-performance dynamic programming language for technical computing, with syntax that is familiar to users of other technical computing environments. It provides a sophisticated compiler, distributed parallel execution, numerical accuracy, and an extensive mathematical function library.
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