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    esprima
    DefinitelyTyped icon, indicating that this package has TypeScript declarations provided by the separate @types/esprima package

    4.0.1 • Public • Published

    NPM version npm download Build Status 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.

    Install

    npm i esprima

    DownloadsWeekly Downloads

    23,174,612

    Version

    4.0.1

    License

    BSD-2-Clause

    Unpacked Size

    314 kB

    Total Files

    7

    Homepage

    esprima.org

    Last publish

    Collaborators

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