以升序对关联数组进行排序-JavaScript
假设我们有一个像这样的对象数组-
const people = [
{"id":1, "name":"Andrew", "age":30, "gender":"m", "category":"G"},
{"id":2, "name":"Brandon", "age":25, "gender":"m", "category":"G"},
{"id":3, "name":"Christine", "age":20, "gender":"m", "category":"G"},
{"id":4, "name":"Elena", "age":29, "gender":"W", "category":"M"}
];我们需要编写一个JavaScript函数，该函数接受一个这样的数组，并根据每个对象的age属性以递增顺序对其进行排序。
因此，输出应如下所示：
const output = [
{"id":3, "name":"Christine", "age":20, "gender":"m", "category":"G"},
{"id":2, "name":"Brandon", "age":25, "gender":"m", "category":"G"},
{"id":4, "name":"Elena", "age":29, "gender":"W", "category":"M"},
{"id":1, "name":"Andrew", "age":30, "gender":"m", "category":"G"}
];示例
以下是完整的代码-
const people = [
{"id":1, "name":"Andrew", "age":30, "gender":"m", "category":"G"},
{"id":2, "name":"Brandon", "age":25, "gender":"m", "category":"G"},
{"id":3, "name":"Christine", "age":20, "gender":"m", "category":"G"},
{"id":4, "name":"Elena", "age":29, "gender":"W", "category":"M"}
];
const sorter = (a, b) => {
return a.age - b.age;
};
const sortByAge = arr => {
arr.sort(sorter);
};
sortByAge(people);
console.log(people);输出结果
这将在控制台中产生以下输出-
[
{ id: 3, name: 'Christine', age: 20, gender: 'm', category: 'G' },
{ id: 2, name: 'Brandon', age: 25, gender: 'm', category: 'G' },
{ id: 4, name: 'Elena', age: 29, gender: 'W', category: 'M' },
{ id: 1, name: 'Andrew', age: 30, gender: 'm', category: 'G' }
]