facebook/esprima

JavaScript Code Style

Yet another JS code coverage tool that computes statement, line, function and branch coverage with module loader hooks to transparently add coverage when running tests. Supports all JS coverage use cases including unit tests, server side functional tests and browser tests. Built for scale

Light-weight option parsing with an argv hash. No optstrings attached.

Javascript wrapping library for escomplex.

Generate JavaScript-compatible regular expressions based on a given set of Unicode symbols or code points.

JavaScript-compatible Unicode data. Arrays of code points, arrays of symbols, and regular expressions for Unicode v7.0.0’s categories, scripts, blocks, bidi, and other properties.

JSON diff

Software complexity analysis for JavaScript projects