### 组装对象和数组 ``` ... ``` ``` 数组 const color = ['red', 'yellow'] const colorful = [...color, 'green', 'pink'] console.log(colorful) //[red, yellow, green, pink] ``` ``` // 对象 const a = {first: 'a', second: 'b'} const b = {...a, third: 'c'} ```