[Vuejs]-"Manipulate" Laravel Blade Form with Vue.JS

First Of all you need to know the basics of JavaScript. Although you had jumped to js framework that will not help you. Learn js first.
If you only want to maintain the End-date by the duration , it can be done by basic js or jquery. You don’t need to adjust vuejs.
Rather if you being compelled to vuejs , it can be done on a component and can be rendered by catching an id of any div tag …