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Mochajs VS bundlejs

Compare Mochajs VS bundlejs and see what are their differences

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Mochajs logo Mochajs

Mocha is a JavaScript test framework running on Node.js and the browser, making asynchronous testing simple.

bundlejs logo bundlejs

A quick and easy way to bundle, minify, and compress (gzip and brotli) your ts, js, jsx and npm projects all online, with the bundle file size.
  • Mochajs Landing page
    Landing page //
    2023-06-20
  • bundlejs Landing page
    Landing page //
    2022-04-23

bundle is a quick and easy way to bundle your projects, minify and see it's gzip size. It's an online tool similar to bundlephobia, but bundle does all the bundling locally on you browser and can treeshake and bundle multiple packages (both commonjs and esm) together, all without having to install any npm packages and with typescript support.

If there is something I missed, a mistake, or a feature you would like added please create an issue or a pull request and I'll try to get to it. You can contribute to this project at okikio/bundle.

You can join the discussion on Github discussions or Twitter.

You can now use search queries in bundle, all you need to do is add this to the url
?q={packages}&treeshake={methods to treeshake}

e.g.
You want react, react-dom, vue, and @okikio/animate, but only want the Animate and toStr methods exported from @okikio/animate.

You would add this to the url bundlejs.com/?q=react,react-dom,vue,@okikio/animate&treeshake=[*],[*],[*],[{Animate,toStr}]

bundlejs

$ Details
free
Platforms
Web Google Chrome Firefox Safari JavaScript Edge
Release Date
2021 May

Mochajs features and specs

  • Flexible and Adaptable
    Mochajs can be used with a variety of assertion libraries, allowing developers to choose the ones that best fit their needs.
  • Rich Feature Set
    Mochajs provides support for asynchronous testing, test retries, file watching, and more, making it versatile for different testing scenarios.
  • BDD/TDD Compatibility
    It supports both Behavior-Driven Development (BDD) and Test-Driven Development (TDD) styles, catering to different development preferences.
  • Custom Reporters
    Mocha supports custom reporters which can integrate with various CI tools and provide customized test result formats.
  • Widely Adopted
    Mocha has a large and active community, ensuring better support, frequent updates, and a wide range of third-party extensions and plugins.

Possible disadvantages of Mochajs

  • Steeper Learning Curve
    Due to its flexibility and the need for additional libraries for assertions, setting up Mocha can be more complex for beginners.
  • Configuration Required
    Mocha typically requires configuration for optimal use, which might be time-consuming compared to more opinionated frameworks that work out of the box.
  • Limited Built-in Assertion Support
    Mocha does not include a built-in assertion library, necessitating the use of additional libraries like Chai for assertions.
  • Potential Dependency Overheads
    Adding multiple third-party plugins and libraries can lead to dependency management challenges and increase the potential for conflicts or bloat.
  • Potentially Less Integrated
    Compared to some all-in-one testing frameworks, Mocha might offer less integrated, cohesive sets of tools, requiring more effort to assemble and maintain a full-featured test suite.

bundlejs features and specs

  • brotli
  • gzip
  • lz4
  • npm
  • deno
  • Configurable
  • jsx
  • TypeScript
  • Offline
  • Error and warning alerting
  • Open-source

Analysis of Mochajs

Overall verdict

  • Yes, Mocha is generally considered a good choice for JavaScript and Node.js testing. It has a strong community backing, extensive documentation, and a modular architecture that makes it adaptable to various testing needs.

Why this product is good

  • Mocha is known for its flexibility and simplicity as a JavaScript testing framework. It supports both synchronous and asynchronous testing, which makes it versatile for different types of projects. Mocha integrates well with various assertion libraries, such as Chai, allowing developers to tailor their testing setup. Its widespread use and robust ecosystem offer plenty of plugins and extensions to enhance testing capabilities.

Recommended for

  • Developers working on Node.js applications
  • Projects requiring both synchronous and asynchronous testing
  • Teams looking for a highly customizable testing solution
  • Developers who want to integrate with various assertion libraries like Chai

Category Popularity

0-100% (relative to Mochajs and bundlejs)
Development Tools
100 100%
0% 0
Developer Tools
0 0%
100% 100
Javascript UI Libraries
100 100%
0% 0
Web Application Bundler
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Mochajs seems to be a lot more popular than bundlejs. While we know about 104 links to Mochajs, we've tracked only 8 mentions of bundlejs. 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.

Mochajs mentions (104)

  • From Requests to Reports: Clean Logging in API Testing
    In this article, we explore logging best practices that are largely tool-agnostic, but we'll demonstrate them using PactumJS, a powerful and extensible API testing tool, along with Mocha, a popular JavaScript test framework. For logging, we’ll use Pino, one of the fastest and most reliable structured loggers for Node.js. - Source: dev.to / about 1 month ago
  • Mastering Webhook & Event Testing: A Guide
    Popular frameworks like Jest, Mocha, or JUnit provide everything you need for effective webhook unit testing, with mocking capabilities that let you simulate external dependencies. - Source: dev.to / about 2 months ago
  • Most Effective Approaches for Debugging Applications
    Large-scale changes to fix a bug often introduce unintended side effects, making incremental fixes a safer approach. Robbin Schuchmann, Co-Founder of EOR Overview, advises, “Applying fixes incrementally is the most reliable way to correct bugs in applications.” By adjusting one variable or function at a time and validating each change with tools like pytest or Mocha, developers ensure fixes are effective without... - Source: dev.to / about 2 months ago
  • Top React Testing Libraries in 2025
    Mocha is a versatile JavaScript testing framework that integrates smoothly with both Node.js and web browsers. It is highly flexible and supports asynchronous testing, making it an excellent choice for applications that require extensive control over the testing environment. Mocha doesn’t include an assertion library but integrates well with popular libraries like Chai and Sinon for assertions and mocks.... - Source: dev.to / 3 months ago
  • How to get 100% code coverage? âś…
    Which third-party libraries will we need: Today, there are many libraries such as Mocha and others that allow users to test code. - Source: dev.to / 3 months ago
View more

bundlejs mentions (8)

  • Zod 4
    These numbers don't reflect anything useful. This is the total size of the code in the package, most of which will be tree-shaken. In Zod's case, the package now contains three independent sub-libraries. I recommend plugging a script into bundlejs.com[0] to see bundle size numbers for a particular script [0] https://bundlejs.com. - Source: Hacker News / 27 days ago
  • PackagePhobia – Find the cost of adding a new dev dependency to your project
    [bundlejs](https://bundlejs.com/) is the better alternative to check your dependency sizes with. - Source: Hacker News / 3 months ago
  • ESM & CJS: The subtle shift in bundlejs' behaviour
    I was closing out some long lived issues over on bundlejs, when issue #50 reminded me of the ongoing debate about how bundlejs should handle the ESM and CJS packages. - Source: dev.to / almost 2 years ago
  • TANStack Query
    Still, I'm not really sure about its dependencies: it lists react and @tanstack/react-query (as opposed to @tanstack/query-core) and bundlejs reports 124KB gzipped. Also, while using it, you still need to refer to their react docs (that documentation is really good and has a lot of examples) but not everyone will be thrilled about checking a react documentation when they're using an angular package. Source: almost 2 years ago
  • Jest not recommended to be used in Node.js due to instanceOf operator issues
    It's somewhere in between. React as a lib and architecture _is_ platform-agnostic. The core logic is defined in the `react-reconciler` package. It contains all the implementation of rendering components, diffing trees, managing state, and running effects, as well as all the "Suspense" implementation. However, the way `react-reconciler` works is that it's built _into_ each platform-specific renderer... - Source: Hacker News / almost 2 years ago
View more

What are some alternatives?

When comparing Mochajs and bundlejs, you can also consider the following products

jQuery - The Write Less, Do More, JavaScript Library.

BundlePhobia - Find the performance impact of adding a npm package to your bundle.

React Native - A framework for building native apps with React

Webpack - Webpack is a module bundler. Its main purpose is to bundle JavaScript files for usage in a browser, yet it is also capable of transforming, bundling, or packaging just about any resource or asset.

Babel - Babel is a compiler for writing next generation JavaScript.

esbuild - An extremely fast JavaScript bundler and minifier