JavaScript:如何基于字符串数组过滤嵌套对象？

Question

我是JavaScript的新手。我现在有一个嵌套的对象：

const fruitList = [
{   fruit: {id: '1-1', fruit_name: 'Apple'},
    location: {id: '2-1', location_name: 'USA'}
},
{
    fruit: {id: '1-2', fruit_name: 'Banana'},
    location: {id: '2-2', location_name: 'UK'}
},
{
    fruit: {id: '1-3', fruit_name: 'Orange'},
    location: {id: '2-1', location_name: 'USA'}
}
];

和一个字符串数组：

let keywords = ['Apple', 'Banana'];

我试图根据上面的字符串数组过滤嵌套的对象，预期的输出是：

output =[    
{   fruit: {id: '1-1', fruit_name: 'Apple'},
    location: {id: '2-1', location_name: 'USA'}
},
{
    fruit: {id: '1-2', fruit_name: 'Banana'},
    location: {id: '2-2', location_name: 'UK'}
}
];

我已经试过了

const filteredFruit = fruitList.filter(({item})=>
    item.fruit?.fruit_name.every(ele => keywords.includes(ele))
)

但没起作用。我也检查了所有类似的问题，但仍然找不到解决它的方法。非常感谢您的帮助！

Answer 1

你们关系很好。

1. item不是被迭代对象的属性，因此不能对其进行重构。

1. 您需要在条件周围交换以检查关键字数组是否includes水果名.

​

const fruitList=[{fruit:{id:"1-1",fruit_name:"Apple"},location:{id:"2-1",location_name:"USA"}},{fruit:{id:"1-2",fruit_name:"Banana"},location:{id:"2-2",location_name:"UK"}},{fruit:{id:"1-3",fruit_name:"Orange"},location:{id:"2-1",location_name:"USA"}}];

const keywords = ['Apple', 'Banana'];

const filteredFruit = fruitList.filter(item =>
  keywords.includes(item.fruit.fruit_name)
);

console.log(filteredFruit);

​