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
HTML5shiv
This script is the defacto way to enable use of HTML5 sectioning elements in legacy Internet Explorer.
Moment
Parse, validate, manipulate, and display dates in javascript.
Sugar
A Javascript library for working with native objects.
Hitch
A lightweight engine that allows you to hitch new capabilities to the browser (prollyfill).
Numeral
A javascript library for formatting and manipulating numbers.
Flexie
Legacy support for the CSS3 Flexible Box Model
Angled Edges
:triangular_ruler: Quickly create angled section edges using only Sass
Store
A better way to use localStorage and sessionStorage
Decimal.js
An arbitrary-precision Decimal type for JavaScript
Yepnope.js
An Asynchronous Conditional Resource Loader
Datejs
Datejs is an open-source JavaScript Date Library.
Console.message
Console messages for cool kids
Xregexp
Extended JavaScript regular expressions