JS6 - 如何循环遍历对象数组并在 country = UK 的位置进行过滤

Question

const arr =[
            {
                id:1,
                name: 'Name',
                country: 'UK',
            },
            {
                id:2,
                name: 'Name',
                country: 'USA',
            },
            {
                id:3,
                name: 'Name',
                country: 'USA',
            },
            {
                id:4,
                name: 'Name',
                country: 'UK',
            },
        ];

Answer 1

尝试使用 filter():

const arr =[ { id:1, name: 'Name', country: 'UK', }, { id:2, name: 'Name', country: 'USA', }, { id:3, name: 'Name', country: 'USA', }, { id:4, name: 'Name', country: 'UK', }, ];

const res = arr.filter(e => e.country === 'UK');

console.log(res);

Answer 2

使用filter

const arr =[
            {
                id:1,
                name: 'Name',
                country: 'UK',
            },
            {
                id:2,
                name: 'Name',
                country: 'USA',
            },
            {
                id:3,
                name: 'Name',
                country: 'USA',
            },
            {
                id:4,
                name: 'Name',
                country: 'UK',
            },
        ];

const uk = arr.filter(item => item.country === 'UK')

console.log(uk)

Answer 3

使用filter()

arr.filter(value => value.country === 'UK')

JS6 - 如何循环遍历对象数组并在 country = UK 的位置进行过滤

JS6 - How can I loop through an array of objects and filter where country = UK

javascript

frontend

web

reactjs

rxjs6