jquery.1.12.4.min.js is a stable version of jQuery which is required to place upon all scripts otherwise none of the jquery code will work.
bootstrat.min.js is used as the core of this template. It is a widely used resource in today’s era. Used to make this template responsive and providing all main classes for ui and also provides scripts that helped to form these templates.
slicknav-min.js is a jQuery plugin used for responsive mobile menu.
scrollUp.js is a jQuery plugin used for Scrollup.
slick-min.js is a jQuery plugin used for carousel slider.
main.js is a custom jQuery used for active all jQuery file.