JavaScript--往对象里面添加数据

方法一：直接添加let obj = {name: 'sun'};// []let key = 'age';let value = 18;obj[key] = value;// .obj.age = 18;console.log(obj, 'obj');// {name: 'sun', age: 18} 'obj'方法二：利用扩展运算符…let objName = {na

小太阳...

15843人浏览 · 2021-12-31 16:49:51

小太阳... · 2021-12-31 16:49:51 发布

方法一：直接添加

    let obj = {
      name: 'sun'
    };
    // []
    let key = 'age';
    let value = 18;
    obj[key] = value;
    // .
    obj.age = 18;
    console.log(obj, 'obj');
	// {name: 'sun', age: 18} 'obj'

方法二：利用扩展运算符…

    let objName = {
      name: 'sun'
    };
    let objAge = {
      age: 18
    };
    let obj = { ...objName, ...objAge };
    console.log(obj, 'obj');
	// {name: 'sun', age: 18} 'obj'

方法三：利用Object.assign()

    let obj = {
      name: 'sun'
    };
    let objAge = {
      age: 18
    };
    Object.assign(obj, objAge);
    console.log(obj, 'obj');
	// {name: 'sun', age: 18} 'obj'