esprima
wmr
esprima | wmr | |
---|---|---|
8 | 11 | |
6,962 | 4,924 | |
0.0% | 0.1% | |
0.0 | 2.9 | |
about 1 year ago | about 2 months ago | |
TypeScript | JavaScript | |
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.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
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.
wmr
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Generative minimal CSS patterns 🪩
wmr for near-instant builds & native TS support
- Angular Is Rotten to the Core
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Where can I learn to properly store an API key on the backend of Create-React-App?
Preferred tech stack is always something I choose for the job at hand. That might just be a few rollup plugins + a tool like WMR or Vite, but it can be also be quite complex and custom build system too. It depends.
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Integrating Fauna Into Preact WMR Application
While the development process is evolving for developers, there’s a need by many developers to have an all-in-one development tool that will make web application development faster and easier. WMR gives developers the added feature and advantage of building web applications based on the all-in-one development tool.
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Using Vite with React
wmr does not have error overlay / SVGR support
It did not take a lot of time to choose the tool. Currently, there are 3 major bundlers powered by ESM - vite, snowpack, and wmr. From the first glance - all of them look promising and I did not care about their internals as long as I don't need to touch them.
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Hammer: Using esbuild to create better tools for the web
WMR could be another option if you haven’t already seen it.
- We Switched from Webpack to Vite
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a first look at wmr
wmr is an all-in-one development tool for modern web apps. Since it leverages ESM modules, it only requires an HTML files with
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vitejs - Next generation frontend tooling.
Thanks! I'll watch this today on lunch break. :) To be frank, I'm not even a Vue user, but Vite looks truly awesome. I love that popular framework authors are taking the time to make their build tools framework-agnostic (also see, wmr by the Preact guys).
What are some alternatives?
estree - The ESTree Spec
vite - Next generation frontend tooling. It's fast!
babel-handbook - :blue_book: A guided handbook on how to use Babel and how to create plugins for Babel.
preact-cli - 😺 Your next Preact PWA starts in 30 seconds.
estraverse - ECMAScript JS AST traversal functions
webpack - A bundler for javascript and friends. Packs many modules into a few bundled assets. Code Splitting allows for loading parts of the application on demand. Through "loaders", modules can be CommonJs, AMD, ES6 modules, CSS, Images, JSON, Coffeescript, LESS, ... and your custom stuff.
esbuild-loader - Webpack loader for esbuild: Speed up your build ⚡️
esbuild - An extremely fast bundler for the web
escodegen - ECMAScript code generator
awesome-vite - ⚡️ A curated list of awesome things related to Vite.js
vite-plugin-vue2 - Vue2 plugin for Vite