Job Listings Page w/ Vue.js

Good day Frontend Mentor pals, before switching to vue.js, I implemented this using good 'ol HTML, CSS and JavaScript. The tags on each "job" is a button, so when those are clicked and the selectedFilters array doesn't contain the clicked "tag" it gets pushed into it, then based on that the jobs arrayis filtered, the "selected filter" value was being pushed to the array but the page didn't "update" which got me thinking "how do JS frameworks do it?"