在 Vuejs 的数据中使用计算属性

2022-01-25 00:00:00 vue.js vue-component vuejs2

如何在数据中使用计算属性或通过总线发出它?

How can I use a computed property in the data or emit it via bus?

我有以下 vue 实例,但 myComputed 始终未定义,但 computedData 工作正常.

I have the following vue instance, but myComputed is always undefined but computedData is working correctly.

var vm = new Vue({
  data(){
    return{
      myComputed: this.computedData
    }
  },

  computed: {
    computedData(){
      return 'Hello World'
    }
  }
})

推荐答案

不幸的是,由于组件创建时间问题,无法在数据中使用计算属性:数据在计算属性之前求值.

Unfortunately, it is impossible to use computed property in data because of component creation timing: data evaluates Before computed properties.

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