HTML5shiv
This script is the defacto way to enable use of HTML5 sectioning elements in legacy Internet Explorer.
ES5 Shims
ECMAScript 5 compatibility shims for legacy JavaScript engines
Stringformatter
JS string formatter that supports objects, currency, date/time, decimals, and more supports easy extension and garbage collection ... goes far beyond sprintf approach.
Dayjs
⏰ Day.js 2KB immutable date library alternative to Moment.js with the same modern API
Date
Date() for humans
Sprintf.js
sprintf.js is a complete open source JavaScript sprintf implementation.
Store
A better way to use localStorage and sessionStorage
Underscore String
String manipulation extensions for Underscore.js javascript library.
Numeral
A javascript library for formatting and manipulating numbers.
Hitch
A lightweight engine that allows you to hitch new capabilities to the browser (prollyfill).
Flexie
Legacy support for the CSS3 Flexible Box Model
Moment
Parse, validate, manipulate, and display dates in javascript.
Klass
a utility for creating expressive classes in JavaScript
Yepnope.js
An Asynchronous Conditional Resource Loader
Angled Edges
:triangular_ruler: Quickly create angled section edges using only Sass
Respond
A fast & lightweight polyfill for min/max-width CSS3 Media Queries (for IE 6-8, and more)
Console.message
Console messages for cool kids