- 首页 > it技术 > >
// 第一种方法
var obj = { "name": "张三", "age": 18 }
var key = "height";
var value = https://www.it610.com/article/175;
obj[key] = value;
console.log(obj);
// {name:"张三", age: 18, height: 175}// 第二种方法
var obj1 = { "name": "张三", "age": 18 }
var value = https://www.it610.com/article/175;
obj1.height = value;
console.log(obj1);
// {name:"张三", age: 18, height: 175}// 第三种方法，扩展运算符
var obj1 = { "apple": 100, "pear": 200 };
var obj2 = { "cherry": 300 };
var obj3 = { ...obj1, ...obj2 };
console.log(obj3);
// {apple: 100, pear: 200, cherry: 300}// 第四种办法,合并多个对象 Object.assign
var obj1 = { a: "1" };
var obj2 = { b: "2" };
var obj3 = { c: "3" };
var obj = Object.assign(obj1, obj2, obj3);
console.log(obj);
// {a: "1", b: "2", c: "3"}
console.log(obj1);
// {a: "1", b: "2", c: "3"}//注意目标对象自身也会改变
console.log(obj2);
//{b: "2"}
console.log(obj3);
//{c: "3"}
推荐阅读
