如果存储中的数据发生变化，如何调用组件函数

Question

我想在变量状态改变时触发一个方法（serviceSelected）。我正在尝试使用计算但它不起作用。我的变量在 vuex 商店中，它有一个 getter 作为 getServiceSelected

computed: {
...mapGetters(["getServiceSelected"]),
serviceChanged() {

  this.serviceSelected(this.getServiceSelected);
  return this.getServiceSelected
}

}

Answer 1

改用watcher

computed: {
    ...mapGetters(["getServiceSelected"])
},
watch: {
    getServiceSelected(newValue, oldValue) {
        // do something
        this.serviceSelected(newValue);
    }
}