minification-benchmarks VS bun

Minifiers are used to reduce the size of the bundle. They can remove unused code, shorten expressions, and so on. And Now there are already several popular minifiers, and they continue to appear: more familiar ones - written in JavaScript - Terser and UglifyJS, even Babel has its own version of the minifier, there are also more modern SWC (written in Rust) and ESBuild (written in Go), and a bunch of other lesser-known minifiers. And I recommend you to look at this repository. It contains up-to-date test results of various popular minifiers.

This minify/gzip size effect is a well known quirk to developers of javascript minifiers. The minifier's symbol mangling algorithm often has a more pronounced effect than does advanced AST optimization.

This website has real life data on the matter for popular libraries:

* https://github.com/privatenumber/minification-benchmarks

Compare the trophies indicating smallest size for Minified versus Minzipped (gzip). Generally the smallest minified size yields the smallest minified+gzip size, but there are some notable anomolies outside the range of statistical noise. It is not practical for a javascript minifier to take a compression algorithm into account - it would blow up the minify timings exponentially.

It would be helpful to see how Bun's minifier compares to the others with popular libraries:

https://github.com/privatenumber/minification-benchmarks

JavaScript

There are many minifiers such as terser and uglify. But, because minifying also require to parse the JS, it is actually possible to use esbuild and SWC to minify the code. Here's a benchmark of the main minifiers.

Here's a comparison showing the major players with comparable stats at first glance. https://github.com/privatenumber/minification-benchmarks

https://esbuild.github.io/ https://github.com/privatenumber/minification-benchmarks

privatenumber/minification-benchmarks – JS minification benchmarks: babel-minify, esbuild, terser, uglify-js

It has a decent compatibility with both Jest and Vitest's APIs (you can track progress here so you can use it as almost a drop-in replacement for either. Just as Node's, it has describe/it, mock, test and others, but with the expect syntax (which I find more readable). For example:

In this third and final article in the series on HTML Streaming, we will explore the practical implementation of the Diff DOM Streaming library in web browsing. This approach will allow any website using web components to retain its state during browsing. We will discuss in detail how to achieve this step by step using VanillaJS and Bun.

At Node Conference 2023, Jarred Sumner (creator of Bun) showed a demo of server components in Bun, so there is at least partial support in that ecosystem. The Bun repo provides bun-plugin-server-components as the official plugin for server components. And while I haven’t looked at it in-depth, Marz claims to be a “React Server Components Framework for Bun”.

Continuously evolving, Bun is currently optimized for MacOS and Linux, with ongoing efforts towards Windows compatibility. Tailored for resource-constrained environments like serverless functions, it emerges as an ideal solution. The Bun team is committed to achieving comprehensive Node.js compatibility and seamless integration with prevalent frameworks. For those intrigued by Bun's potential and want to give it a try, more information is available on its website at https://bun.sh/.

Let’s say you are interested in learning more about Bun and probably give it a try. Bun has a website, where you can learn more about Bun and its features (including all the benchmark data captured in this issue), and here is the link.

Looks like it, it seems the 2% are mostly odd platform specific issues that the authors' did not deem very important (my assumption for the release happening anyway). AFAIK this[1] PR tries to fix them.

[1]: https://github.com/oven-sh/bun/pull/9729

Bun has a solution for it. First of all, it already has a list of trusted dependencies. For them, Bun will execute all necessary scripts by default. Otherwise, you can add it to trustedDependecies in your package.json file. In Bun community usage of trustedDependencies is a hot topic. There are several suggestions on how to improve it.

Install Node.js (or Bun, or Deno, or whatever JS runtime you prefer) if it's not there

I think maybe I was unclear. I'm talking about writing libraries that abstract across these differences and provide a single API, as sibling describes. I already know it's possible. I made a simple filesystem abstraction here[0] and a very simple HTTP library that uses it here[1]. They both work in Node/Deno and the browser. Unfortunately I ran into issues with Bun's slice implementation[2]. But I suspect there's a much better way of detecting and using the different backends.

[0]: https://github.com/waygate-io/fs-js

[1]: https://github.com/waygate-io/http-js

[2]: https://github.com/oven-sh/bun/issues/7057