基于嵌套对象值的排序数组
基于嵌套对象值的排序数组
提问于 2020-12-19 01:41:57
我正在尝试创建一个基于嵌套对象值对数组进行排序的函数。
const customers = [
{
name: 'John',
displayOrder: [{ route1: 1 }, { route2: 3 }],
},
{
name: 'Julie',
displayOrder: [{ route1: 2 }, { route2: 1 }],
},
{
name: 'Betsy',
displayOrder: [{ route1: 3 }, { route2: 2 }],
},
];
function sortCustomers(customers, route) {
//enter amazing code here :P
//here is what I think could work, just don't know how to get the index number
customers.sort((a, b) => (a.displayOrder[?].route > b.displayOrder[?].route ? 1 : -1))
}
const route = 'route2';
sortCustomers(customers, route);
//desired output: [{Julie}, {Betsy}, {John}]我想使用array.sort，但我不知道如何为传入的适当路由参数动态生成索引。
回答 2
Stack Overflow用户
回答已采纳
发布于 2020-12-19 01:54:52
您可以找到顺序并将其作为排序的值。
function sortCustomers(customers, route) {
const order = ({ displayOrder }) => displayOrder.find(o => route in o)[route];
customers.sort((a, b) => order(a) - order(b));
return customers;
}
const customers = [{ name: 'John', displayOrder: [{ route1: 1 }, { route2: 3 }] }, { name: 'Julie', displayOrder: [{ route1: 2 }, { route2: 1 }] }, { name: 'Betsy', displayOrder: [{ route1: 3 }, { route2: 2 }] }];
console.log(sortCustomers(customers, 'route2'));.as-console-wrapper { max-height: 100% !important; top: 0; }
Stack Overflow用户
发布于 2020-12-19 02:36:21
const customers = [
{
name: 'John',
displayOrder: [{ route1: 1 }, { route2: 3 }],
},
{
name: 'Julie',
displayOrder: [{ route1: 2 }, { route2: 1 }],
},
{
name: 'Betsy',
displayOrder: [{ route1: 3 }, { route2: 2 }],
},
];
function sortCustomers(customers, route) {
const index = route == "route2" ? 1 : 0;
let sorted = customers.sort((a, b) => {
return a.displayOrder[index][route] - b.displayOrder[index][route]
})
// only listed name obj
const result = sorted.map(obj => obj.name);
return result;
}
const route = 'route2';
const result = sortCustomers(customers, route);
console.log(result)
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原文链接：
https://stackoverflow.com/questions/65361564
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