JavaScript libraries
Touch enabled jQuery plugin that lets you create beautiful responsive carousel slider

Geolocation
ipify API is a simple public IP address API easy enough to integrate into any application in seconds

Analytics
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JavaScript libraries
Swiper is the most modern free mobile touch slider with hardware accelerated transitions and amazing native behavior

JavaScript frameworks
React is the library for web and native user interfaces Build user interfaces out of individual pieces called components written in JavaScript React is designed to let you seamlessly combine components written by independent people teams and organizations

Reviews
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Ecommerce
The World Wide Web Consortium W3C develops standards and guidelines to help everyone build a web based on the principles of accessibility internationalization privacy and security