ES6之扩展运算符

一 将数组转换为用逗号分隔的参数序列

let turtles = ['Leo','Raph','Mikey','Don'];
console.log(...turtles);

二 在解构赋值时使用

let turtles = ['Leo','Raph','Mikey','Don'];
let [first,second,...others] = turtles;
console.log(first,second,others);