tslib VS bundlejs

It's appropriate for software designed for use cases where an attribution requirement would be inconvenient or otherwise undesirable. For example, https://github.com/microsoft/tslib uses it, because that library is automatically included in any TypeScript program that uses downleveling, so if it had an attribution requirement then that requirement would apply to every program written in TypeScript, which nobody wants. (GCC and LLVM do something similar with their special runtime-library exceptions to the GPL and Apache License, respectively, but tslib lives in a separate repository from the rest of TypeScript and so could easily just get a separate license.)

Looking at some popular JavaScript projects on GitHub, I noted that react, moment, and express all use single quotes for strings. However, another popular project, tslib, uses double quotes 🙄. So, while it would seem that single quotes is more common, this metric is not entirely conclusive.

Things get a little interesting if you're using CommonJS interoperability, in which case our second import becomes something like const view2 = __importDefault(require("./view2")).default. This helper function checks to see if the imported file is an ES module and effectively namespaces the module under the default property if not. You can see TypeScript's implementation of this here.

You may just copy them from tslib. It's 0BSD-licensed which doesn't even require attribution; but having the link somewhere in your comments is at least polite 🙂

Package Size Checker

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.

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.

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 implementation. So, the size of `react-dom` is actually the size of `react-reconciler` + all the DOM-specific behavior.

A quick check of https://bundlejs.com/?q=react-reconciler suggests it's about 100K minified. https://bundlejs.com/?q=react-dom is 138K, so that tells me that the DOM-specific logic is 38K.

React Hook Form has no dependencies and a small bundle size. It has a gzipped bundle size of 12.12KB, according to bundlejs.

These are shameless plugs, but https://bundlejs.com and https://inthistweet.app. I built both tools specifically because I didn't find any other tools that solved the problems I kept running into.

Try https://bundlejs.com/ to see

bundlejs (pronounced bundle js) is a quick and easy way to treeshake, bundle, minify, and compress (in either gzip or brotli) your typescript, javascript, jsx and npm projects, while receiving the total bundles' file size.

Don't know of any but was going thru Adam Wathan's twits and replies. Found, https://github.com/okikio/bundle Looks medium sized.