前端学习笔记202310学习笔记第一百零玖天-vue3-链式调用&对象属性与遍历&this指向&caller_callee之18

const a=[]
console.log(a.constructor)
console.log( a instanceof Array)
var str=Object.prototype.toString.call(a)
console.log(str)

var arr=new Array(1,2,3)
console.log(arr)

运行结果