statistics.js allows to conduct common statistical analyses in any JavaScript environment.
calculate mean standard deviation in one pass
Array manipulation, ordering, searching, summarizing, etc.
a JavaScript library for performing geospatial operations with GeoJSON
Telemetry logging for crash reports and usage statistics
Lightweight debugging utility for Node.js and the browser
Lodash modular utilities.
React is a JavaScript library for building user interfaces.
A querystring parser that supports nesting and arrays, with a depth limit
Higher-order functions and common patterns for asynchronous code
Babel compiler core.