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Luigi Pinca
aee3ef523a
Install `eslint-plugin-markdown` at the same level of `eslint` without cd'ing into `eslint` directory, otherwise the following error is raised: ``` npm ERR! code ERESOLVE npm ERR! Cannot destructure property 'name' of 'node' as it is null. ``` PR-URL: https://github.com/nodejs/node/pull/37566 Fixes: https://github.com/nodejs/node/issues/37560 Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ruy Adorno <ruyadorno@github.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
Esprima (esprima.org, BSD license) is a high performance, standard-compliant ECMAScript parser written in ECMAScript (also popularly known as JavaScript). Esprima is created and maintained by Ariya Hidayat, with the help of many contributors.
Features
- Full support for ECMAScript 2017 (ECMA-262 8th Edition)
- Sensible syntax tree format as standardized by ESTree project
- Experimental support for JSX, a syntax extension for React
- Optional tracking of syntax node location (index-based and line-column)
- Heavily tested (~1500 unit tests with full code coverage)
API
Esprima can be used to perform lexical analysis (tokenization) or syntactic analysis (parsing) of a JavaScript program.
A simple example on Node.js REPL:
> var esprima = require('esprima');
> var program = 'const answer = 42';
> esprima.tokenize(program);
[ { type: 'Keyword', value: 'const' },
{ type: 'Identifier', value: 'answer' },
{ type: 'Punctuator', value: '=' },
{ type: 'Numeric', value: '42' } ]
> esprima.parseScript(program);
{ type: 'Program',
body:
[ { type: 'VariableDeclaration',
declarations: [Object],
kind: 'const' } ],
sourceType: 'script' }
For more information, please read the complete documentation.