The jQWidgets framework is available as NPM package:

jQuery, Javascript, Angular, Vue, React, Web Components:

https://www.npmjs.com/package/jqwidgets-scripts - source files.
https://www.npmjs.com/package/jqwidgets-framework - source files, demos, docs, images. 

Additional packages:

https://www.npmjs.com/package/create-jqwidgets-angular-app
https://www.npmjs.com/package/create-jqwidgets-vue-app
https://www.npmjs.com/package/create-jqwidgets-react-tsx-app

Angular Modules:

https://www.npmjs.com/package/jqwidgets-ng