Software Alternatives, Accelerators & Startups

D (Programming Language) VS Blockly

Compare D (Programming Language) VS Blockly and see what are their differences

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D (Programming Language) logo D (Programming Language)

D is a language with C-like syntax and static typing.

Blockly logo Blockly

Blockly is a library for building visual programming editors.
  • D (Programming Language) Landing page
    Landing page //
    2023-05-09
  • Blockly Landing page
    Landing page //
    2023-04-18

D (Programming Language) features and specs

  • Performance
    D is designed to be a high-performance systems programming language, offering performance comparable to C and C++ through native machine code compilation.
  • Expressiveness
    D features a rich standard library and modern language constructs, such as garbage collection, first-class arrays, and advanced templating, making it easier to write expressive and maintainable code.
  • Memory Safety
    D offers optional garbage collection along with manual memory management. This hybrid approach can help in developing safer applications by reducing memory-related errors.
  • Interoperability
    D can easily interoperate with C API, enabling seamless integration with existing C libraries and systems. It also supports better C++ interoperability compared to other languages.
  • Built-in Unit Testing
    D has built-in support for unit tests, allowing developers to write and run tests as part of the language itself, facilitating test-driven development.
  • Concurrency
    D offers built-in concurrency support with message passing, similar to the actor model found in languages like Erlang, making it easier to write concurrent and parallel programs.

Possible disadvantages of D (Programming Language)

  • Adoption
    D is not as widely adopted as other languages like C, C++, or Java. This limited adoption means fewer libraries, frameworks, and community support.
  • Toolchain Maturity
    While D's compilers and tools have improved over the years, they may still lack the maturity and feature set of more established languages, which can affect developer productivity.
  • Learning Curve
    D's richness and combination of paradigms (such as imperative, object-oriented, and functional programming) can present a steep learning curve for new developers.
  • Garbage Collection
    Although D offers optional garbage collection, its reliance on it for memory safety might be seen as a drawback for real-time system development where deterministic memory management is crucial.
  • Ecosystem
    The ecosystem for D is less vibrant compared to more popular languages, leading to potentially fewer third-party libraries, tools, and resources.
  • Standard Library Documentation
    The standard library documentation can be inconsistent or less comprehensive compared to other languages, making it difficult for developers to fully utilize all features of the language.

Blockly features and specs

  • User-Friendly
    Blockly offers a highly intuitive and visual interface. Users, especially beginners and non-programmers, can easily drag and drop blocks to create programs without needing to write code manually.
  • Educational Value
    Blockly is excellent for educational purposes. It simplifies the learning curve for programming by abstracting the complexities of syntax, allowing learners to focus on understanding logic and computational thinking.
  • Cross-Language Support
    Blockly can generate code for multiple programming languages (JavaScript, Python, PHP, Lua, Dart). This makes it versatile and useful for teaching and transitioning to various languages.
  • Customizability
    Blockly is highly customizable. Developers can create custom blocks and define their own rules, making it adaptable to various projects and domain-specific needs.
  • Open Source
    As an open-source project, Blockly provides the flexibility to modify and extend the toolkit to fit specific requirements. This open nature encourages community contributions and improvements.

Possible disadvantages of Blockly

  • Limited Complexity
    Blockly is designed for simplicity and may not handle very complex programming tasks efficiently. Advanced users might find it insufficient for sophisticated or large-scale projects.
  • Performance Overhead
    The visual programming model can introduce performance overhead. Converting blocks to executable code and running it can be less efficient compared to hand-written code, especially for performance-critical applications.
  • Learning Transition
    While Blockly is great for beginners, transitioning from block-based programming to traditional text-based coding can be challenging. Users may need additional guidance to adapt to the intricacies of syntax and coding best practices.
  • Limited Debugging Tools
    Blockly does not offer advanced debugging tools. Debugging issues can be more challenging compared to traditional IDEs that provide sophisticated debugging capabilities.
  • Scalability Issues
    For large projects, the block-based approach can become unwieldy and harder to manage compared to traditional text-based code which can be more neatly structured and maintained.

Analysis of D (Programming Language)

Overall verdict

  • Overall, D is a solid programming language choice that balances performance with productivity. It may not be as widely adopted as some other languages, but it has a dedicated community and continues to evolve, making it a viable option for various programming tasks.

Why this product is good

  • The D programming language is considered good by many developers for various reasons. It combines the performance and low-level control of C/C++ with the expressive power and ease of use found in modern languages. D offers features like garbage collection, first-class functions, and compile-time function execution, providing both speed and flexibility. Its interoperability with C, the convenience of a powerful standard library (Phobos), and the availability of packages via the DUB package manager make it a practical choice for systems programming, application development, and rapid prototyping.

Recommended for

  • System programming enthusiasts looking for an alternative to C/C++
  • Developers interested in writing high-performance applications
  • Programmers who appreciate modern language features and strong community support
  • Projects requiring seamless C integration
  • Individuals looking for a language that supports easy code maintenance and scalability

Analysis of Blockly

Overall verdict

  • Yes, Blockly is a good tool, especially for educational environments and projects that benefit from visual programming. It's well-supported by Google and the community, making it a reliable choice for developers.

Why this product is good

  • Blockly is a powerful library for creating visual programming editors. Its intuitive drag-and-drop interface allows both beginners and advanced programmers to create code blocks that can be converted into various text-based programming languages like JavaScript, Python, and more. This ease of use makes it an excellent tool for educational purposes and rapid prototyping.

Recommended for

  • Educators looking to introduce programming concepts to students.
  • Developers seeking to build applications with a visual programming interface.
  • Hobbyists interested in creating projects without extensive coding knowledge.
  • Organizations aiming to develop interactive tutorials and learning platforms.

D (Programming Language) videos

D Language Tutorial

Blockly videos

Blockly: Using Block Based Coding in your App

More videos:

  • Review - Fable Blockly Review
  • Review - Trying Out Blockly, Google's New Programming Language [DiceTV]

Category Popularity

0-100% (relative to D (Programming Language) and Blockly)
Programming Language
100 100%
0% 0
Web Frameworks
0 0%
100% 100
OOP
100 100%
0% 0
Developer Tools
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare D (Programming Language) and Blockly

D (Programming Language) Reviews

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Blockly Reviews

Top 20 Javascript Libraries
Blockly, a creation of Google, is a web-based visual programming editor. When added to the code, the library adds an editor to the app that represents code snippets like loops, expressions, variables, and more as blocks. The best part is that you can create custom code, and the output is syntactically correct in your choice of the programming language. Blockly has no...
Source: hackr.io

Social recommendations and mentions

Based on our record, D (Programming Language) should be more popular than Blockly. It has been mentiond 60 times since March 2021. 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.

D (Programming Language) mentions (60)

  • Ask HN: What is your (AI) dev tech stack / workflow? (June 2026)
    I've spent 2 weeks (2-4h per day) to make D language[1] version of Sciter SDK [2] Choice of AI "tooling" was by accident - typed something like "how to define copy constructor in D for custom structure" in Microsoft's Copilot in Edge browser that gives context for AI. The answer was good enough for me and so I went with it further. [1] D language HQ : https://dlang.org/. - Source: Hacker News / about 2 months ago
  • Rue: Higher level than Rust, lower level than Go
    > Mostly, I am not really trying to compete with C/C++/Rust on speed, but I'm not going to add a GC either. So I'm somewhere in there. Out of curiosity, how would you compare the goals of Rue with something like D[0] or one of the ML-based languages such as OCaml[1]? 0 - https://dlang.org/ 1 - https://ocaml.org/. - Source: Hacker News / 7 months ago
  • Pony: An actor-model, capabilities-secure, high-performance programming language
    The D language home page has something similar with a drop down with code examples https://dlang.org/. - Source: Hacker News / 12 months ago
  • Show HN: D++lang โ€“ A new systems programming language with Python-like syntax
    What is this? There's a lot of red flags here. * The name "D" for a programming language was taken in 1999: https://dlang.org/. - Source: Hacker News / about 1 year ago
  • Koto Programming Language
    >For me the biggest gap in programming languages is a rust like language with a garbage collector, instead of a borrow checker. I cannot agree more that's the much needed sweet spot/Goldilock/etc. Personally I have been advocating this approach for some times. Apparently the language is already widely available and currently has stable and wide compiler support including the venerable GNU compiler suite (GDC). It... - Source: Hacker News / over 1 year ago
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Blockly mentions (31)

  • Ask HN: Platform for 11 year old to create video games?
    Scratch is fantastic. There are also a number of similar (block-based) tools that let you create your own custom blocks and see the code behind them - e.g. Blockly (https://developers.google.com/blockly). - Source: Hacker News / almost 2 years ago
  • Ask HN: Modern Day Equivalent to HyperCard?
    If your kid is already doing Scratch, Blockly is a really easy next step. https://developers.google.com/blockly Critically, Blockly can emit JavaScript and Python, plus it supports plugins for extended functionality. So the kid can stay inside the blockly universe for as long as they like, but easily peer under the hood and get into Python or JavaScript as soon as they like. - Source: Hacker News / about 2 years ago
  • A shortage of teachers for computer science classes in California
    The issue with Alice is that graphical, block based coding is not at all an ergonomic way to code. Sure, C++ probably isn't the best for an intro CS courses, either, but even just Python with some wrappers over SDL to draw sprites is not only a better teaching tool it's also forms a more useful springboard to build other projects. Graphical, block based coding seems to be a common attempt to make coding more... - Source: Hacker News / over 2 years ago
  • โšง๏ธŽ Super Smash Siblings Trans
    Unless it would contradict canon, every stage is very bright, highly interactive, full of pre-placed items, and so huge that you can usually run from your NPC opponents and enjoy exploring the stage in peace while they catch up to you. All buildings have Linux computers with actual internet access that allow you to program and print out your own projectiles/books/flags/UNO reverse cards/shinigami eyes/soupcans/cis... Source: almost 3 years ago
  • Scratch is the worldโ€™s largest coding community for children
    If your kids tinker with Scratch, try out TurboWarp[1], a Scratch mod that compiles projects to JavaScript. Other alternatives to tinker with are Blocky[2] and Snap[3]. 1. https://turbowarp.org 2. https://developers.google.com/blockly/ 3. https://snap.berkeley.edu. - Source: Hacker News / over 3 years ago
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What are some alternatives?

When comparing D (Programming Language) and Blockly, you can also consider the following products

C++ - Has imperative, object-oriented and generic programming features, while also providing the facilities for low level memory manipulation

Spring Framework - The Spring Framework provides a comprehensive programming and configuration model for modern Java-based enterprise applications - on any kind of deployment platform.

Nim (programming language) - The Nim programming language is a concise, fast programming language that compiles to C, C++ and JavaScript.

Spark Mail - Spark helps you take your inbox under control. Instantly see whatโ€™s important and quickly clean up the rest. Spark for Teams allows you to create, discuss, and share email with your colleagues

V (programming language) - Simple, fast, safe, compiled language for developing maintainable software.

Grails - An Open Source, full stack, web application framework for the JVM