prototype.js
https://github.com/sstephenson/prototype
moment js
https://github.com/moment/moment
three.js
https://github.com/mrdoob/three.js/
Select2
Select2 is a jQuery-based replacement for select boxes. It supports searching, remote data sets, and pagination of results.
To get started, checkout examples and documentation at https://select2.org/
jQuery File Upload
https://github.com/blueimp/jQuery-File-Upload
File Upload widget with multiple file selection, drag&drop support, progress bars, validation and preview images, audio and video for jQuery.
Supports cross-domain, chunked and resumable file uploads and client-side
image resizing.
Works with any server-side platform (PHP, Python, Ruby on Rails, Java,
Node.js, Go etc.) that supports standard HTML form file uploads.