Babel (Formerly 6to5)
astexplorer
Babel (Formerly 6to5) | astexplorer | |
---|---|---|
58 | 43 | |
42,913 | 5,953 | |
0.1% | - | |
9.7 | 6.0 | |
8 days ago | 8 days ago | |
TypeScript | JavaScript | |
MIT 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.
Babel (Formerly 6to5)
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What is an Abstract Syntax Tree in Programming?
GitHub | Website
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Mastering Jest Configuration for React TypeScript Projects with Vite: A Step-by-Step Guide
node 'node_modules/.bin/jest' '/Users/satparkash/code/test-app/src/A pp.test.tsx' -t 'App' FAIL src/App.test.tsx ā Test suite failed to run SyntaxError: /Users/satparkash/code/test-app/src/App.test.tsx: Support for the experimental syntax 'jsx' isn't currently enabled (6:12): 4 | describe('App', () => { 5 | it('should work as expected', () => { > 6 | render(); | ^ 7 | }); 8 | }); 9 | Add @babel/preset-react (https://github.com/babel/babel/tree/main/packages/babel-preset-react) to the 'presets' section of your Babel config to enable transformation. If you want to leave it as-is, add @babel/plugin-syntax-jsx (https://github.com/babel/babel/tree/main/packages/babel-plugin-syntax-jsx) to the 'plugins' section to enable parsing. Test Suites: 1 failed, 1 total Tests: 0 total Snapshots: 0 total Time: 0.278 s Ran all test suites matching /\/Users\/satparkash\/code\/test-app\/src\/App.test.tsx/i with tests matching "App".
- Open source public fund experiment - One and a half years update
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I Reworked my Rate My GMU Professor (Google Extension)
Webpack (Babel) - https://babel.dev/
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Babel is used by millions, so why are we running out of money? (2021)
I do appreciate your transparency, though I disagree with the sentiment that Iām arguing from a position of bad faith.
Itās a self-evident fact that the Babel team has not shown a moment of interest in lowering their role in the JavaScript ecosystem to anything short of kingmakers. Have a gander at their GitHub README and what do we see?[1]
- āBabel is a compiler for writing next generation JavaScript.ā Indefinitely.
- Over a dozen sponsor logos. An embarrassment of riches.
- A literal audio recording of a song in praise of the project.
The Babel team has a well documented history of their priorities[2], emphasizing the need for a modular approach that has no exit strategy[3]. At best, we have a case of accidental entrenchment and long term dependence on the Babel brewing as early as 2017![4]
Compare this infinite circus to the humble but popular Normalize.css, which has the express purpose to stop existing.[5]
If the Babel team wants to raise some money, they can start by putting a plan together that would codify an exit strategy. Itās certainly more noble than their current plan of barnacling on to every NPM packageā¦
- [1] https://github.com/babel/babel
- [2] https://github.com/babel/notes
- [3] https://github.com/babel/notes/blob/master/2016/2016-07/july...
- [4] https://github.com/babel/notes/blob/master/2017/2017-04/apri...
- [5] https://nicolasgallagher.com/about-normalize-css/
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Reveddit does not work
The problem was I had used some new code, Javascript's replaceAll(), that is unsupported by older browsers. And, the setup I have to automatically fix such issues (called babel) is out of date. So, while this problem appears to be resolved there, I hadn't updated that in awhile.
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The Complete Guide for Setting Up React App from Scratch (feat. TypeScript)
babel-loader(v9.1.0): allows transpiling JavaScript files using Babel and webpack.
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Upgrade your Lerna Workspace - Make it Fast and Modern!
created 6 years ago to solve the specific problem of managing the Babel repo packages
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Help with error when trying to include context in application before building and uploading to server.
https://github.com/babel/babel/discussions/13013 maybe this could help
- āIgnore the f'ing haters ā And other lessons learned from creating a popular
astexplorer
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Understanding Code Structure: A Beginner's Guide to Tree-sitter
You can play with your code here, and visualise ASTs for the same.
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What is an Abstract Syntax Tree in Programming?
Website
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How to create your own Eslint rule with tests, boosting the DX, and code-review
To understand this syntax, I recommend exploring AST Explorer. You will have a better view of how the AST of JavaScript works and how to correlate it with the Eslint syntaxy:
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Programming from Top to Bottom - Parsing
You can never mistake type_declaration with an identifier, otherwise the program will not work. Aside from that constraint, you are free to name them whatever you like, there is no one standard, and each parser has it own naming conventions, unless you are planning to use something like LLVM. If you are interested, you can see examples of naming in different language parsers in the AST Explorer.
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ESLint: under the hood
The rule that I want to write will be called not-allows-underscore: the idea is to abolish the use of underscores when declaring variables or functions. It's a real dummy rule, but it should be enough to see in action the concepts that we have discussed earlier. The first thing that I would do is to go to AST Explorer, write down a code that declares variables and functions (both standard and arrows one) and take a look at what type of node is the one that encodes the identifier. Doing that, I found out that the node type of my interest is Identifier, what a surprise! š¤£. In particular, the structure of the node holds the string used as identifier in the name property.
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š±Ā ESlint over Conventions - You have Not unlocked the power of ESlint š±
All the information about the API, AST node names, AST Explorer, etc. you can read in the official documentation. Iām just going to show examples of how to automate the check-up of our created conventions.
- AST Exploret
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200 Web-Based, Must-Try Web Design and Development Tools
AST Viewer
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Building a JSON Parser from scratch with JS š¤Æ
If you want to see how the AST of popular languages looks, I recommend the AST Explorer. It supports various languages, and you can view the complete AST and navigate through the nodes. If you want to go further, you can try to copy some logic from an existing parser and implement it in your own, such as calculating an expression according to precedence order, for example: 1 + 2 * 3 (which is 7, not 9).
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Creating my own typescript compiler
https://astexplorer.net/ is a good resource/playground for understanding ASTs and transpilers.
What are some alternatives?
Traceur compiler - Traceur is a JavaScript.next-to-JavaScript-of-today compiler
deno_swc - The SWC compiler for Deno.
Live Server - A simple development http server with live reload capability.
gogocode - GoGoCode is a transformer for JavaScript/Typescript/HTML based on AST but providing a more intuitive API.
ESLint - Find and fix problems in your JavaScript code.
vscode-language-tree - VSCode tree format support
Lebab - Turn your ES5 code into readable ES6. Lebab does the opposite of what Babel does.
ChakraCore - ChakraCore is an open source Javascript engine with a C API.
dark-mode - Control the macOS dark mode from the command-line
Acorn - A small, fast, JavaScript-based JavaScript parser
ECMAScript 6 compatibility table - ECMAScript compatibility tables
proposal-type-annotations - ECMAScript proposal for type syntax that is erased - Stage 1