小编eva*_*van的帖子

const ducks = [
   { first: 'Stan', last: 'duck' },
   { first: 'Steve', last: 'duck' },
   { first: 'Kyle', last: 'duck' },
];

我试过了

const ducks = [
  { first: 'Stan', last: 'duck' },
  { first: 'Steve', last: 'duck' },
  { first: 'Kyle', last: 'duck' },
];

console.log(ducks, [3]); 

这回归太多了:

[...]                                     [3]
  0: {first: "Stan", last: "duck"}          0: 3
  1: {first: "Steve", last: "duck"}         length: 1
  2: {first: "Kyle", last: "duck"}          __proto__: Array(0)
  length: 3
  __proto__: Array(0)

需要它返回的名称"Stan", …