esprima
vite
esprima | vite | |
---|---|---|
8 | 791 | |
6,962 | 64,913 | |
0.0% | 1.1% | |
0.0 | 9.9 | |
about 1 year ago | 1 day ago | |
TypeScript | TypeScript | |
BSD 2-clause "Simplified" License | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
esprima
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ESLint: under the hood
Focusing again on ESLint, the parser used by the linter is called Espree. This is an in-house parser built by the ESLint folks to fully support ECMAScript 6 and JSX on top of the already existing Esprima. The Espree module provide APIs for both tokenization and parsing that you can easily test out.
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Why you don’t need TypeScript
For TypeScript we have used AST transforms from their compiler API, and for plain JavaScript we did a similar thing using ESPrima. This helped us implement some simple optimizations like stream fusion (combining .filter and .map into a single operation) or avoiding extra object allocations in vector math, which led to nice performance improvements in code that does heavy computation (we process large amounts of data on the server and store results of physics simulations).
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Algorithm to simplify a 100-variable Boolean expression?
I used ESPrima, but any parser would do in this case. I then wrote a simple function to extract all "atomic" non-boolean expressions from it.
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How to make your own programming language in JavaScript
AST is an acronym for Abstract Syntax Tree. It's the way to represent code in a format that tools can understand. Usually in form of tree data structure. We will use AST in the format of an Esprima, which is a JavaScript parser that outputs AST.
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What the heck is an Abstract Syntax Tree (AST) ?
esprima
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Abstract Syntax Trees: They're Actually Used Everywhere -- But What Are They?
Create an AST: Esprima
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We Switched from Webpack to Vite
The thread was originally about CRA vs Vite size on disk (or implicitly, if we're applying it to real world applications, network cost in CI job startup times). And like I said, surrogate pairs don't apply to ASCII.
See this[0] for reference. Note how the first byte must fall within a certain range in order to signal being a surrogate pair. This fact is taken advantage of by JS parsers to make parsing of ASCII code faster by special casing that range, since checking for a valid character in the entire unicode range is quite a bit more expensive[1].
[0] https://github.com/jquery/esprima/blob/0911ad869928fd218371b...
[1] https://github.com/jquery/esprima/blob/0911ad869928fd218371b...
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How to create your own language that compile to JavaScript
If you want to learn more about parsing, reading the code of an actual recursive parser might be a better idea. Esprima is a decent place to start if you're interested in JS grammar. Then you can look at the babel handbook to learn more about AST transformations. From there, the literature gets quite a bit more heavy. If you get this far and are willing to push further, you'll probably want to grab yourself a copy of the dragon book at a minimum.
vite
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FlowDiver: The Road to SSR - Part 1
Given our team's collective proficiency within the React ecosystem, we decided to leverage this expertise for our project. Initially, we contemplated utilizing Next.js; however, due to the limited practical experience with this technology among key engineers and the pressing timeline to develop the first prototype, we opted for a Single Page Application(SPA) approach. For bundling, we selected Vite, primarily due to its super fast build times, simplicity of configuration, and potential for a nearly seamless transition to server-side rendering.
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Inflight Magazine no. 9
We are continuing to add new project templates for various types of projects, and we've recently created one for the infamous combination of React with Vite tooling.
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Top 12+ Battle-Tested React Boilerplates for 2024
Vite focuses on providing an extremely fast development server and workflow speed in web development. It uses its own ES module imports during development, speeding up the startup time.
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Vite vs Nextjs: Which one is right for you?
Vite and Next.js are both top 5 modern development framework right now. They are both great depending on your use case so we’ll discuss 4 areas: Architecture, main features, developer experience and production readiness. After learning about these we’ll have a better idea of which one is best for your project.
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Setup React Typescript with Vite & ESLint
import { defineConfig } from 'vite' import react from '@vitejs/plugin-react-swc' import path from 'path' // https://vitejs.dev/config/ export default defineConfig({ plugins: [react()], server: { port: 3000 }, css: { devSourcemap: true }, resolve: { alias: { '~': path.resolve(__dirname, './src') } } })
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Approaches to Styling React Components, Best Use Cases
I am currently utilizing Vite:
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Getting started with TiniJS framework
Homepage: https://vitejs.dev/
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Use CSS Variables to style react components on demand
Without any adding any dependencies you can connect react props to raw css at runtime with nothing but css variables (aka "custom properties"). If you add CSS modules on top you don't have to worry about affecting the global scope so components created in this way can be truly modular and transferrable. I use this with vite.
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RubyJS-Vite
Little confused as to why it has vite in it‘s name, it seems unrelated to https://vitejs.dev/
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Ask HN: How do we include JavaScript scripts in a browser these days?
it says in their docs that they recommend Vite https://vitejs.dev/
it goes like this.
1. you create a repo folder, you cd into it.
2. you create a client template using vite which can be plain typescript, or uses frameworks such as react or vue, at https://vitejs.dev/guide/
3. you cd in that client directory, you npm install, then you npm run dev, it should show you that it works at localhost:5173
4. you follow the instructions on your url, you do npm install @web3modal/wagmi @wagmi/core @wagmi/connectors viem
5. you follow the further instructions.
> It seems like this is for npm or yarn to pull from a remote repository maintained by @wagmi for instance. But then what?
you install the wagmi modules, then you import them in your js code, those code can run upon being loaded or upon user actions such as button clicks
> Do I just symlink to the node_modules directory somehow? Use browserify? Or these days I'd use webpack or whatever the cool kids are using these days?
no need for those. browserify is old school way of transpiling commonjs modules into browser-compatible modules. webpack is similar. vite replaces both webpack and browserify. vite also uses esbuild and swc under the hood which replaces babel.
> I totally get how node package management works ... for NODE. But all these client-side JS projects these days have docs that are clearly for the client-side but the ES2015 module examples they show seem to leave out all instructions for how to actually get the files there, as if it's obvious.
pretty much similar actually. except on client-side, you have src and dist folders. when you run "npm run build" vite will compile the src dir into dist dir. the outputs are the static files that you can serve with any http server such as npx serve, or caddy, or anything really.
> What gives? And finally, what exactly does "browserify" do these days, since I think Node supports both ES modules and and CJS modules? I also see sometimes UMD universal modules
vite supports both ecmascript modules and commonjs modules. but these days you'll just want to stick with ecmascript which makes your code consistently use import and export syntax, and you get the extra benefit of it working well with your vscode intellisense.
> In short, I'm a bit confused how to use package management properly with browsers in 2024: https://modern-web.dev/guides/going-buildless/es-modules/
if people want plain js there is unpkg.com and esm.sh way, but the vite route is the best for you as it's recommended and tested by the providers of your modules.
> And finally, if you answer this, can you spare a word about typescript? Do we still need to use Babel and Webpack together to transpile it to JS, and minify and tree-shake, or what?
I recommend typescript, as it gives you better type-safety and better intellisense, but it really depends. If you're new to it, it can slow you down at first. But as your project grows you'll eventually see the value of it. In vite there are options to scaffold your project in pure js or ts.
What are some alternatives?
estree - The ESTree Spec
Next.js - The React Framework
babel-handbook - :blue_book: A guided handbook on how to use Babel and how to create plugins for Babel.
parcel - The zero configuration build tool for the web. 📦🚀
estraverse - ECMAScript JS AST traversal functions
esbuild - An extremely fast bundler for the web
esbuild-loader - Webpack loader for esbuild: Speed up your build ⚡️
swc - Rust-based platform for the Web
escodegen - ECMAScript code generator
astro - The web framework for content-driven websites. ⭐️ Star to support our work!
vite-plugin-vue2 - Vue2 plugin for Vite
Rollup - Next-generation ES module bundler