js数组如何存储对象

const arr = [  { name: "John", age: 30 },  { name: "Mary", age: 25 }];

const arr = [];arr[0] = { name: "John", age: 30 };arr[1] = { name: "Mary", age: 25 };

const obj1 = { name: "John", age: 30 };const obj2 = { name: "Mary", age: 25 };const arr = [...obj1, ...obj2];

const person = arr[0];  // 获取第一个对象

for (let i = 0; i <ol start="3"><li><strong>使用 for-of 循环：</strong></li></ol><pre class="brush:php;toolbar:false">for (const person of arr) {  // 此处 person 即为数组中的对象}