espree
An Esprima-compatible JavaScript parser (by eslint)
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espree | ast-and-practical-js-applications | |
---|---|---|
5 | 1 | |
2,244 | 0 | |
1.1% | - | |
6.2 | 4.8 | |
5 days ago | 7 months ago | |
JavaScript | JavaScript | |
BSD 2-clause "Simplified" License | - |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.
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.
espree
Posts with mentions or reviews of espree.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-11-07.
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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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Abstract Syntax Trees and Practical Applications in JavaScript
Why do we then have other JavaScript parsers like babel parser, swc parser, acorn, espree and the likes since JavaScript engines have their own internal parsers?
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Quick start with ESLint
How does ESLint work? ESLint uses Espree for Javascript parsing. It uses an AST to evaluate patterns in code. It does all this before runtime.. meaning, without running your Javascript code it will find the bugs, syntax and stylistic errors.
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Gentle Introduction To ESLint Rules
ESLint doesn't process the code into the compiler phases, rather it provides an option to let you specify a Parser. By default, ESLint uses Espree which essentially converts JS source code to AST data structure, so in case you want to write a rule targeting TypeScript source code, you'll need to specify a different parser in your .eslintrc.json configuration file, same applies for different file extension, for HTML you might use this or creating your own parser!
- Show HN: Monocle – bidirectional code generation library
ast-and-practical-js-applications
Posts with mentions or reviews of ast-and-practical-js-applications.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-10-21.
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Abstract Syntax Trees and Practical Applications in JavaScript
As you may have noticed, this isn't a comprehensive "How to Create a Babel Plugin" tutorial, so we won't spend too much time talking about how to Create a plugin. Instead, we'll begin with a template that I have exclusively designed for this article. This template is hosted in a monolithic repository, which simplifies the management of multiple packages within a single project. The template has two plugins in its plugin directory, one Babel plugin and another Eslint plugin. You can access the repository on GitHub.
What are some alternatives?
When comparing espree and ast-and-practical-js-applications you can also consider the following projects:
escodegen - ECMAScript code generator
babel-plugin-handbook - How to create Babel plugins
recast - JavaScript syntax tree transformer, nondestructive pretty-printer, and automatic source map generator
Acorn - A small, fast, JavaScript-based JavaScript parser
Babel (Formerly 6to5) - 🐠 Babel is a compiler for writing next generation JavaScript.
ESLint - Find and fix problems in your JavaScript code.
V8 - The official mirror of the V8 Git repository
estree - The ESTree Spec
babel-sublime - Syntax definitions for ES6 JavaScript with React JSX extensions.
the-super-tiny-compiler - :snowman: Possibly the smallest compiler ever
espree vs escodegen
ast-and-practical-js-applications vs babel-plugin-handbook
espree vs recast
ast-and-practical-js-applications vs Acorn
espree vs Babel (Formerly 6to5)
ast-and-practical-js-applications vs ESLint
espree vs Acorn
ast-and-practical-js-applications vs V8
espree vs estree
ast-and-practical-js-applications vs babel-sublime
espree vs babel-plugin-handbook
ast-and-practical-js-applications vs the-super-tiny-compiler