How to wait for props values ​​to load?

Question

Vue.js

Good day. The value of props is pulled from the api, but how in the child can you see that the props have loaded? I was sure that watch would work, but this did not happen.

watch: {
 chartData(){
        this.t.update();
     }
}

Answer 1

In such cases, it's good to make a loader. And while the data is being loaded, we show the loader, and when they arrive, we show the components into which we forward the data received, filtered or processed for other tasks (for example).
Data loading should be tracked where this loading is initialized. But in any case, if the value of the prop changes, the component should re-render.