28 lines
2.0 KiB
Markdown
28 lines
2.0 KiB
Markdown
[](https://www.npmjs.com/package/esprima)
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[](https://www.npmjs.com/package/esprima)
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[](https://travis-ci.org/jquery/esprima)
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[](https://codecov.io/github/jquery/esprima)
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**Esprima** ([esprima.org](http://esprima.org), BSD license) is a high performance,
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standard-compliant [ECMAScript](http://www.ecma-international.org/publications/standards/Ecma-262.htm)
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parser written in ECMAScript (also popularly known as
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[JavaScript](https://en.wikipedia.org/wiki/JavaScript)).
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Esprima is created and maintained by [Ariya Hidayat](https://twitter.com/ariyahidayat),
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with the help of [many contributors](https://github.com/jquery/esprima/contributors).
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### Features
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- Full support for ECMAScript 6 ([ECMA-262](http://www.ecma-international.org/publications/standards/Ecma-262.htm))
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- Sensible [syntax tree format](https://github.com/estree/estree/blob/master/spec.md) as standardized by [ESTree project](https://github.com/estree/estree)
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- Optional tracking of syntax node location (index-based and line-column)
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- [Heavily tested](http://esprima.org/test/ci.html) (~1250 [unit tests](https://github.com/jquery/esprima/tree/master/test/fixtures) with [full code coverage](https://codecov.io/github/jquery/esprima))
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Esprima serves as a **building block** for some JavaScript
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language tools, from [code instrumentation](http://esprima.org/demo/functiontrace.html)
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to [editor autocompletion](http://esprima.org/demo/autocomplete.html).
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Esprima runs on many popular web browsers, as well as other ECMAScript platforms such as
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[Rhino](http://www.mozilla.org/rhino), [Nashorn](http://openjdk.java.net/projects/nashorn/), and [Node.js](https://npmjs.org/package/esprima).
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For more information, check the web site [esprima.org](http://esprima.org).
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