再次学习 Iterator 迭代器 与 Generator 生成器

Iterator :

返回的结果是:{value, done}

function chef(foods){

let i = 0;

return {

next(){

let done = ( i> foods.length);

let value = !done foods[i++];undefined;

return{

value,

done

}

}

}

}

let wanghao = chef([‘西红柿‘,‘鸡蛋‘])

console.log(wanghao.next());

console.log(wanghao.next());

...

generator(生成器):

function* chef()

{

yeild ‘西红柿‘;

yeild ‘鸡蛋‘;

}

let wanghao = chef();

改造下:

function* chef(foods){

for(var i =0;i<foods.length;i++)

{

yeild foods[i]

}

}

var wanghao = chef([‘西红柿‘,‘鸡蛋‘])

console.log(wanghao.next());

console.log(wanghao.next());

...

原文地址：https://www.cnblogs.com/eret9616/p/9222304.html