JQuery UI uses its own factory to operate its components. If you read about it, you would notice it can be apply just to just any component of its own flavor not necessarily from JQuery UI. You can go to JQuery UI’s download page and specify what tools you need to download. Because I wanted to keep Bootstrap on its own and use JQuery UI as its helper. I needed to just download the core functionality and its draggable feature. That was it, then I was able to go on and turn the progress bar into a slider.
You can read more of how this gets apply by visiting https://github.com/juanmendez/bootstrap-slider (enjoy )