Dayjs
⏰ Day.js 2KB immutable date library alternative to Moment.js with the same modern API
Stringformatter
JS string formatter that supports objects, currency, date/time, decimals, and more supports easy extension and garbage collection ... goes far beyond sprintf approach.
Underscore String
String manipulation extensions for Underscore.js javascript library.
Date
Date() for humans
Hitch
A lightweight engine that allows you to hitch new capabilities to the browser (prollyfill).
Moment
Parse, validate, manipulate, and display dates in javascript.
Flexie
Legacy support for the CSS3 Flexible Box Model
HTML5shiv
This script is the defacto way to enable use of HTML5 sectioning elements in legacy Internet Explorer.
Respond
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Store
A better way to use localStorage and sessionStorage
Numeral
A javascript library for formatting and manipulating numbers.
Yepnope.js
An Asynchronous Conditional Resource Loader
Decimal.js
An arbitrary-precision Decimal type for JavaScript
Angled Edges
:triangular_ruler: Quickly create angled section edges using only Sass
Datejs
Datejs is an open-source JavaScript Date Library.
Console.message
Console messages for cool kids
Xregexp
Extended JavaScript regular expressions