ES6---Map数据结构

1  for (let key of peoples) {
2             console.log(key); //  ["name", "L"]  ["age", "25"]  ["sex", "男"] 
3         }
// 2. 用forEach遍历

 peoples.forEach((value, key, map) => {
            console.log(value, key, map);
        });
        // 输出：L name Map(3) {"name" => "L", "age" => "25", "sex" => "男"}
        //      25 age Map(3) {"name" => "L", "age" => "25", "sex" => "男"}
        //      男 sex Map(3) {"name" => "L", "age" => "25", "sex" => "男"}
// Map数据转换成数组 使用扩展运算符(...)

var arr = [...peoples]
        console.log(arr);
        // 0: (2)["name", "L"]
        // 1: (2)["age", "25"]
        // 2: (2)["sex", "男"]