Tools for Working with JavaScript in R

A set of utilities for working with JavaScript syntax in R. Includes tools to parse, tokenize, compile, validate, reformat, optimize and analyze JavaScript code.



  • Make parameters to ESprima explicit
  • Do not validate syntax before tokenizing or parsing with ESprima


  • Add wrappers for esprima parser and tokenizer


  • Add coffee script


  • Initial release

Reference manual

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1.1 by Jeroen Ooms, 2 years ago

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Browse source code at

Authors: Jeroen Ooms

Documentation:   PDF Manual  

Task views: Web Technologies and Services

MIT + file LICENSE license

Imports V8

Suggests knitr, rmarkdown

Suggested by ChemoSpec, exCon.

See at CRAN