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esprima (1.2.2)

Published 2026-02-24 13:56:20 +00:00 by atheaadmin

Installation

Setup this registry in your project .npmrc file:

registry=

To install the package using npm, run the following command:

npm install esprima@1.2.2

or add it to the package.json file:

"esprima": "1.2.2"

For more information on the npm registry, see the documentation.

About this package

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 5.1 (ECMA-262)
• Sensible syntax tree format compatible with Mozilla Parser AST
• Optional tracking of syntax node location (index-based and line-column)
• Heavily tested (> 650 unit tests with full code coverage)
• Partial support for ECMAScript 6

Esprima serves as a building block for some JavaScript language tools, from code instrumentation to editor autocompletion.

Esprima runs on many popular web browsers, as well as other ECMAScript platforms such as Rhino, Nashorn, and Node.js.

For more information, check the web site esprima.org.

Dependencies

Development Dependencies

ID	Version
complexity-report	~0.6.1
eslint	~0.4.3
istanbul	~0.2.6
jscs	~1.2.4
jslint	~0.1.9
json-diff	~0.3.1
optimist	~0.6.0
regenerate	~0.5.4
unicode-6.3.0	~0.1.0

Keywords

ast ecmascript javascript parser syntax

Details

npm

2026-02-24 13:56:20 +00:00

0

Ariya Hidayat

Project Site

77 KiB

Assets (1)

esprima-1.2.2.tgz 77 KiB

Versions (2) View all

4.0.1 2026-02-24

1.2.2 2026-02-24