I like using the helpful ReactJS. It is a JavaScript library for user interfaces.
I never heard of it.
How about Sencha Touch which is another JavaScript. 
Never heard of it either; i'm a basic computer user.
Well Sencha Touch is a JavaScript library for user interfaces on the web and to develop apps.
I'm curious i will do some research.
If you do then also look up Ext JS.  That is another one but used to cross platform web apps like Ajax or DOM.
Ok, thank you for the useful information.
Google Chrome
Google Chrome (commonly known simply as Chrome) is a cross-platform web browser developed by Google. It was first released in 2008 for Microsoft Windows, and was later ported to Linux, macOS, iOS, and Android. The browser is also the main component of Chrome OS, where it serves as the platform for web apps.
Most of Chrome's source code comes from Google's open-source Chromium project, but Chrome is licensed as proprietary freeware. WebKit was the original rendering engine,
Sencha Touch
Sencha Touch is a user interface (UI) JavaScript library, or web framework, specifically built for the Mobile Web. It can be used by Web developers to develop user interfaces for mobile web applications that look and feel like native applications on supported mobile devices. It is based on web standards such as HTML5, CSS3 and JavaScript. The goal of Sencha Touch is to facilitate quick and easy development of HTML5 based mobile apps which run on Android, iOS, Windows, Tizen and BlackBerry devices, simultaneously allowing