How to track props change in Vue3 component?

Question

Vue.js

Let's say I have a property

prop: {
    coords:
        type: Array,
        required: true,
}
methods: {
    foo(_newCoords) {//не важно}
}

How can I track when the changed coords property is received so that foo is fired when new coordinates arrive?

Answer 1

Did they cut watchers in Vue 3 or what?