javascript - 删除集合中的第一个匹配项

Question

给定一个集合，如何仅删除符合条件的第一个项目？

例如，给定这个集合:

[
  { id: 1, name: "don" },
  { id: 2, name: "don" },
  { id: 3, name: "james" },
  { id: 4, name: "james" }
]

过滤掉第一个匹配{ name: "james"}的结果。

结果:

[
  { id: 1, name: "don" },
  { id: 2, name: "don" },
  { id: 4, name: "james" }
]

Answer 1

使用 underscore.js _.without 和 _.findWhere

var myarray = [
  { id: 1, name: "don" },
  { id: 2, name: "don" },
  { id: 3, name: "james" },
  { id: 4, name: "james" }
];
var arr = _.without(myarray, _.findWhere(myarray, {
 name: "james"
}));
console.log(arr);

<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>

使用 Lodash _.without 和 _.find

var myarray = [
  { id: 1, name: "don" },
  { id: 2, name: "don" },
  { id: 3, name: "james" },
  { id: 4, name: "james" }
];


var result =_.without(myarray, _.find(myarray, { name: "james" }));
console.log(result);

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.min.js"></script>