子组件props接收不同类型的值

Question

父组件传过来的值，前两个都可以在watch中打印出来，可是childExchangeRate无法打印。是因为类型不同吗？正确的书写格式是？

props: {

childAssets: '',
childBookdata: '',
childExchangeRate: 0

},

Answer 1

试试这样

  props: {
    childAssets: {
      required: false,
      type: String,
      default: ""
    },
    childBookdata: {
      required: false,
      type: String,
      default: ""
    },
    childExchangeRate: {
      required: false,
      type: Number,
      default: 0
    }
  },

vue props 链接https://cn.vuejs.org/v2/guide...