如何从对象数组获取ID并制作数组

Question

var arrayOfObj = [{id: 41, uid: "62d0e9d5-25d4"},
        {id: 42, uid: "62d0e9d5-25d4},
        {id: 43, uid: "62d0e9d5-25d4},
        {id: 44, uid: "62d0e9d5-25d4}];

预期结果：a = [41,42,43];

Answer 1

与Array#map一起使用

arrayOfObj.map(a=>a.id)

Answer 2

您可以使用javascript映射功能来实现。 在此处阅读文档：https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/map