@contrast/esprima

4.1.2 • Public • Published

NPM version npm download Tests Coverage Status

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

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.

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Install

npm i @contrast/esprima

Homepage

esprima.org

Weekly Downloads

37

Version

4.1.2

License

BSD-2-Clause

Unpacked Size

329 kB

Total Files

7

Last publish

Collaborators

  • planetlevel
  • contrastsec
  • tough-griff
  • annettenugent
  • michaelwitz
  • chrisdunne
  • contrast_admin
  • jcolekaplan
  • bmacnaughton