A mostly reasonable approach to JavaScript.
#js
Rome
ustomizable date (and time) picker. Opt-in UI, no jQuery!
SweetAlert
A BEAUTIFUL REPLACEMENT FOR JAVASCRIPT’S “ALERT”
Numeral.js
A javascript library for formatting and manipulating numbers.
Velocity.js
Velocity is a jQuery plugin that re-implements $.animate() to produce significantly greater performance (making Velocity also faster than CSS animation libraries) while including new features to improve animation workflow.
JavaScript Patterns
Big collection of different patterns for programming in Javascript.
CoffeeScript
CoffeeScript is a little language that compiles into JavaScript.
Moment.js
A 5.5kb javascript date library for parsing, validating, manipulating, and formatting dates.
React
"A JavaScript library for building user interfaces", built by Facebook/Instagram.