用数组值过滤数组对象

Question

我正在尝试用数组值过滤一个数组对象，这里是代码：

const array1 = [{
            "packaging": "Box",
            "price": "100"
        }, {
            "packaging": "Pcs",
            "price": "15",
        }, {
            "packaging": "Item",
            "price": "2",
        }];

const b = ['Pcs','Item']
const found = array1.filter(el => {
    for(i = 0; i < b.length; i++) {
      return el.packaging !== b[i];
    }
});

console.log(found);

我预期的输出是数组，对象在 b 中不存在 [{ packaging: "Box", price: "100" }]

Answer 1

改为使用 .includes 检查：

const array1 = [{
            "packaging": "Box",
            "price": "100"
        }, {
            "packaging": "Pcs",
            "price": "15",
        }, {
            "packaging": "Item",
            "price": "2",
        }];

const b = ['Pcs','Item']
const found = array1.filter(el => !b.includes(el.packaging));
console.log(found);

Answer 2

您应该执行以下操作，

const array1 = [{
            "packaging": "Box",
            "price": "100"
        }, {
            "packaging": "Pcs",
            "price": "15",
        }, {
            "packaging": "Item",
            "price": "2",
        }];

const b = ['Pcs','Item']
const found = array1.filter(el => {
    return b.findIndex(item => item === el.packaging) <= -1;
});

console.log(found);

Answer 3

这是否解决了您的问题？

const arr1 = [
  {"packaging": "Box", "price": "100"}, 
  {"packaging": "Pcs", "price": "15"}, 
  {"packaging": "Item", "price": "2"}
];

const arr2 = ['Pcs','Item'];
const found = arr1.filter(item => {
  return arr2.indexOf(item.packaging) === -1;
});

console.log(found);

用数组值过滤数组对象

filter array object with array value

javascript

ecmascript-5

ecmascript-6