Vue的props里default: ()=> {}写法一个小坑

下面这种常见的这种写法是有问题的

 props: {
    myArray: {
      type: Array,
      default: ()=> []
    },
    myObject: {
      type: Object,
      default: ()=> {}
    },
},
created() {
    cosole.log("this.myObject",this.myObject)  // this.myObject undefined
  },

最简单的调整是加个括号

 props: {
    myArray: {
      type: Array,
      default: ()=> []
    },
    myObject: {
      type: Object,
      default: ()=> ({})
    },
}