JavaScript 对象部署 Iterator 接口

const name = {
            first:"hello",
            last:"world",
            fullname: "hello world"
        }

方式一、Object.keys

for (var i of Object.keys(name)) {
                console.log(i,"-",name[i])
            }

　　

 

方法二、Object.keys + Generator

 function *map(item) {
            for (var i of Object.keys(item)) {
                yield [i,item[i]] 
            }
        }
        for(var [key, value] of map(name)) {
            console.log(key,"-",value)
        }

　

 

注：generator函数中不能使用箭头函数

例：

*map = (item) => {
            for (var i of Object.keys(item)) {
                yield [i,item[i]] 
            }
        }