JS中判断数组的方式有哪些?

let obj = {};
let arr = [1,2,3];

console.log("对象的类型是", typeof obj);// 对象的类型是 object
console.log("数组的类型是", typeof arr);// 数组的类型是 object

let obj = {};
let arr = [1,2,3];

let objType = Object.prototype.toString.call(obj);
let arrType = Object.prototype.toString.call(arr);

console.log("对象的类型是", objType);// 对象的类型是 [object Object]
console.log("数组的类型是", arrType);// 数组的类型是 [object Array]

let obj = [];
console.log(obj.__proto__ === Array.prototype)

let obj =[];
console.log(Array.isArray(obj));

let obj = [];
console.log(obj instanceof Array)