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Emscripten VS Rust

Compare Emscripten VS Rust and see what are their differences

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Emscripten logo Emscripten

Emscripten is an LLVM to JavaScript compiler.

Rust logo Rust

A safe, concurrent, practical language
  • Emscripten Landing page
    Landing page //
    2021-08-02
  • Rust Landing page
    Landing page //
    2023-05-09

We recommend LibHunt Rust for discovery and comparisons of trending Rust projects.

Emscripten features and specs

  • Cross-platform compatibility
    Emscripten enables developers to compile C and C++ code to WebAssembly or JavaScript, allowing the same codebase to run on multiple platforms, such as browsers and node.js, without needing additional platform-specific adaptations.
  • Leverage existing libraries
    Developers can utilize a vast ecosystem of existing C and C++ libraries by compiling them for the web, saving time and resources required for rewriting or finding alternatives developed in JavaScript.
  • Performance optimization
    Emscripten's compilation to WebAssembly provides near-native performance for web applications, making it suitable for compute-intensive tasks like gaming, simulations, and data processing.
  • Familiar toolchain
    Developers can use familiar tools like CMake and others as part of their Emscripten workflow, making it easier for those with C/C++ backgrounds to adapt and integrate into their web development processes.

Possible disadvantages of Emscripten

  • Steep learning curve
    Developers unfamiliar with C and C++ may find Emscripten challenging to use effectively, as it requires knowledge of these languages and their build systems to create and debug applications.
  • Limitations in browser environments
    Certain features of C/C++ may not translate directly to web environments due to browser sandboxing constraints, leading to potential issues with file I/O, threading, and other system-level operations.
  • Code size
    Compiled WebAssembly and JavaScript code can sometimes be large, potentially affecting load times and performance, especially on lower-end devices with restrictive bandwidth or processing capabilities.
  • Debugging complexity
    Debugging WebAssembly code can be more complex than traditional JavaScript, requiring specialized tooling and techniques to trace and fix issues effectively.

Rust features and specs

  • Memory Safety
    Rust’s ownership system guarantees memory safety without a garbage collector, preventing common bugs such as null pointer dereferencing, buffer overflows, and data races.
  • Performance
    Rust aims to provide memory safety while maintaining high performance. It is often as fast as C and C++ due to zero-cost abstractions.
  • Concurrency
    Rust's ownership and type system make it easier to write safe concurrent code, helping developers avoid concurrency issues.
  • Tooling
    Rust has excellent tooling, including the Cargo package manager and build system, and Rustfmt for code formatting.
  • Community and Ecosystem
    Rust has a growing community and ecosystem, with active contributions and a wide range of libraries and frameworks available.
  • Strong Typing and Error Handling
    Rust’s type system and pattern matching compel developers to handle errors and edge cases, leading to more robust and predictable code.

Possible disadvantages of Rust

  • Learning Curve
    Rust’s advanced features such as its ownership system and lifetimes can be difficult for beginners to grasp, making it harder to learn compared to some other languages.
  • Compilation Time
    Rust can have longer compilation times, especially for large codebases, which can slow down the development process.
  • Ecosystem Maturity
    Although growing, Rust's ecosystem is not yet as mature as those of more established languages like JavaScript, Python, or even C++, leading to fewer available libraries and frameworks for certain tasks.
  • Complexity of Code
    The strictness of Rust's borrow checker can lead to more complex and verbose code as developers explicitly manage ownership and lifetimes.
  • Tool and Library Development
    Despite the rapid growth, some tools and libraries are still under development or lack the polish of their counterparts in more mature languages.

Emscripten videos

Monster Madness Online (Emscripten Web Technology Overview)

Rust videos

Rust Crash Course | Rustlang

More videos:

  • Review - Why You Should & Shouldn't Learn the Rust Programming Language
  • Review - All About Rust

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User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Emscripten and Rust

Emscripten Reviews

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Rust Reviews

Top 5 Most Liked and Hated Programming Languages of 2022
A survey by Stack Overflow reveals that about 83.5% of 90000 developers loved Rust and tagged it to be the most adorable programming language. Rust is that general-purpose programming language that mainly caters to excellent performance and safety. This multi-worldview programming language has syntax similar to that of C++.
Top 10 Rust Alternatives
Several programming languages like Rust are among the popular ones. However, people are in search of some good alternatives to Rust. Therefore, today we will be talking more about the top 10 alternatives to Rust.
The 10 Best Programming Languages to Learn Today
Rust is a fairly advanced language, so you'll want to master another language or two before learning Rust. But you'll find that learning Rust pays off generously. The average salary for a Rust developer in the U.S. is $105,000 per year.
Source: ict.gov.ge

Social recommendations and mentions

Rust might be a bit more popular than Emscripten. We know about 48 links to it since March 2021 and only 47 links to Emscripten. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Emscripten mentions (47)

  • Ask HN: Qt style "Signals and Slots" based JavaScript UI library?
    The first thing that comes to mind is that Qt now has a WebAssembly port[1] using Emscripten[2], so depending on your use-case, you could possibly just run Qt on the Web platform and avoid the need for a JavaScript framework entirely. [1]: https://doc.qt.io/qt-5/wasm.html [2]: https://emscripten.org. - Source: Hacker News / 23 days ago
  • Ask HN: Resources for Learning Graphics Programming
    Me and a friend build our own Graphics engines based on https://learnopengl.com I can highly recommend this to everyone who gets started with computer graphics. It is a lot of new information but not the most modern Graphics library, but the information will help you understand the field and pickup any other graphics library quicker. Once I had a small project up and running I started looking at... - Source: Hacker News / 8 months ago
  • Software Applications Incorporated
    Https://infinitemac.org, which is https://basilisk.cebix.net compiled for the web using https://emscripten.org. - Source: Hacker News / over 1 year ago
  • How does one get started with unit testing?
    One place that I’ve found some real, open source unit tests to look at for an example is in the emsdk for emscripten: https://emscripten.org. Source: over 1 year ago
  • Playing with low-level memory in WebAssembly
    I am playing around with Emscipten which wraps around clang to compile C/C++ code in WASM binary and provide some glue-code API to embed WASM binary into JavaScript. Look into MDN Docs and Emscripten SDK to get started. - Source: dev.to / over 1 year ago
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Rust mentions (48)

  • Useful Clippy lints
    Hello! Rust has very useful tool, named Cargo. It helps you compile code, run program, run tests and benches, format code using cargo fmt and lint it using clippy. In this post we'll talk abou Clippy. - Source: dev.to / 2 months ago
  • Minimalist blog with Zola, AWS CDK, and Tailwind CSS - Part 1
    What are we going to do today? We're going to build a minimalist blog using Zola (built with Rust, btw), AWS CDK, Tailwind CSS, and a tiny bit of Typescript. - Source: dev.to / 3 months ago
  • This Tool can remove 98% Bloatware apps
    Effortlessly remove up to 98% of bloatware apps from your Android device without needing root access. Developed in Rust for efficiency and reliability. - Source: dev.to / 6 months ago
  • What Language Should I Choose?
    One language that really gave me that feeling was Gleam, it managed to wrap everything I liked about languages such as JS, Rust and even Java into one brilliant type-safe package. Not for a long time before I met Gleam had I wanted to try creating so many different things just to get to the bottom of how this language ticked, as it were. - Source: dev.to / 7 months ago
  • Learning Rust: Enumerating Excellence
    Let's dive back into Rust! This time we're going to be going through the lesson called "Enums and Pattern Matching". We're going to be looking at inferring meaning with our data, how we can use match to execute different code depending on input and finally we'll have a look at if let. - Source: dev.to / about 1 year ago
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What are some alternatives?

When comparing Emscripten and Rust, you can also consider the following products

WebAssembly - Application and Data, Languages & Frameworks, and Languages

Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.

Cheerp - Enterprise-grade C/C++ compiler for Web applications. Compiles to WASM/JavaScript

Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible

Tiny C Compiler - The Tiny C Compiler is an x86, x86-64 and ARM processor C compiler created by Fabrice Bellard.

JavaScript - Lightweight, interpreted, object-oriented language with first-class functions