title: Vue3 - watching changes on all variables in component at once instead of each one?
body: <p>I have a few variables in my component. For example:</p>
  <pre><code>const selectedStudents = computed({
  get: get it
  set: { set it; search(); }
  
  const selectedTeachers = computed({
  get: get it
  set: { set it; search(); }
  
  
  const selectedSchools = computed({
  get: get it
  set: { set it; search(); }
  </code></pre>
  <p>I am wondering if it's possible to make it so that instead of having the <code>search();</code> in every set function, I somehow watch changes on ANY of the variables, and if any of them changes, I perform a search. The reason I want this is because currently, in certain situations, I perform as many searches as I have variables (7-8 currently), when it could just be one search instead.</p>