“...”操作符

// 展开操作符
var fruits =['apple','balan','organize']
var number = [1,2,9];
console.log(fruits); // ['apple','balan','organize']
console.log(...fruits); // apple balan organize

var hello = ['hi',...number]
console.log(hello) // ["hi", 1, 2, 9]
            
//剩余操作符
function breakfase (desert,drink,...foods){
　　console.log(desert) // hi
　　console.log(drink) // hello
　　console.log(foods) // ["ye", "good", "nihao"]
};
breakfase('hi','hello','ye','good','nihao')