npm

underscore-groups-by

Many-to-many grouping of objects in a list.

leaflet-div-style-icon

DivIcons that can be passed svg-like style rules

integrate

Numerical integrators for ordinary differential equations in asm.js

nice-buckets

Get a list of n sub-ranges that contain a range. Or something.

expression-ui

fun with math expressions

expression-compiler

Expression Compiler ===================

expression-parser

Expression Parser =================

results

Discriminated Unions including Maybe (an option type) and Result for javascript with fewer bugs

client-csv

Client-side CSV downloader, supporting IE10+

fast-circles

draw lots of markers quickly without clustering

@openride/sticky-test

Tape-inspired test framework

xxs

sort of like react or elm but worse and extra-extra-small

react-results-proptypes

proptype validators for results instances

spindle-ui

A tiny helper for structuring React components in a way that's easy to create, maintain, reuse, and scale

react-combo-test

Check combinations of prop and context values for stateless components

check-prop-types

Check PropTypes, returning errors instead of logging them

state-mixer

get an array of interesting states

form-mechanics

Compose forms through a nice API