vega/datalib

A parser and formatter for delimiter-separated values, such as CSV and TSV

Format numbers for human consumption.

Simplified HTTP request client.

Make synchronous web requests

BDD/TDD assertion library for node.js and the browser. Test framework agnostic.

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

Static analysis tool for JavaScript

simple, flexible, fun test framework

A calculator for humanity’s peculiar conventions of time.

A JavaScript time formatter and parser inspired by strftime and strptime.

Manipulate TopoJSON and convert it to GeoJSON.