将字典键值添加到数组[JavaScript]

以下是Javascript中我的数据结构示例:

var list = [{"username":"admin1"}, {"username":"admin2"}, {"username":"admin3"}, 
{"username":"admin4"}, {"username":"admin5"}];

如何将每个"用户名"添加到新数组(var result = [])？

最终数据结构的样本将是:

var result = ["admin1", "admin2", "admin3", "admin4", "admin5"];

谢谢*

使用Array#map方法通过迭代元素来生成数组.

var list = [{"username":"admin1"}, {"username":"admin2"}, {"username":"admin3"}, 
{"username":"admin4"}, {"username":"admin5"}];

var res = list.map(function(o) {
  return o.username
});

console.log(res);