Reactivity issues?

Question

Vue.js

From the example, I use the "render" object, since it will be necessary to render items differently, I use this.$set and this.$delete It would seem that there should not be any problems with reactivity, but after removing the item from the main array, the render object for some reason it doesn't update(
Demo link: https://codepen.io/Metis/pen/dgYmvX?editors=1010

Answer 1

Some kind of drug addict nonsense, you can’t say otherwise. Where did you get the idea that changing items should somehow affect render.items? Seriously - WHERE DID YOU GET THIS? Please tell me it's very interesting.
Maybe you should have made a computed property here?