Question

如何过滤具有多个条件的数组？

var users = [
  { user: "barney", age: 36, active: true },
  { user: "fred", age: 39, active: false },
  { user: "fred", age: 40, active: false },
  { user: "fred", age: 41, active: false },
  { user: "fred", age: 42, active: false },
  { user: "fred", age: 43, active: false },
]
_.filter(users, function (o) {
  return o.age !== 40 || o.age !== 41 || o.age !== 42
})

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.20/lodash.min.js"></script>

Answer 1

谓词功能有一个小问题

o.age !== 40 || o.age !== 41 || o.age !== 42

通过每个对象，因为年龄只有一个值，所以检查它是否不同于3个不同的值绝对是正确的

以下修补程序可以为您提供帮助

var users = [
  { user: "barney", age: 36, active: true },
  { user: "fred", age: 39, active: false },
  { user: "fred", age: 40, active: false },
  { user: "fred", age: 41, active: false },
  { user: "fred", age: 42, active: false },
  { user: "fred", age: 43, active: false },
]

const res = _.filter(users, function (o) {
  return ![40, 41, 42].includes(o.age)
})

console.log(res)

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.20/lodash.min.js"></script>

Lodash使用多个属性过滤对象数组

1 个答案: