title: Customize the display in an input [Vue.Js]
body: <p>I have an input that must contain values according to the selected checkboxes, and I would customize the display on the input according to the checked checkbox.</p>
  <p>I have initialized a watcher that updates the v-model of my input but the display is the following: my input : [Jhon,Eliott]
  While I would like to put a space in place of the comma. which gives: my input: [Jhon Eliott].</p>
  <p>I created a codeSandBox which explains in more detail the desired result.</p>
  <p><a href="https://codesandbox.io/s/fancy-grass-shn31?file=/src/components/HelloWorld.vue" rel="nofollow noreferrer">Code sandbox</a></p>