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法律研究以升序對關聯陣列進行排序 - JavaScript
假設我們有一個這樣的物件陣列 −
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"}
];我們需要編寫一個 JavaScript 函式，該函式接收這樣的陣列，並根據每個物件中 age 屬性的升序對陣列就地進行排序。
因此，輸出應如下所示 −
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"}
];範例
以下是完整程式碼 −
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);輸出
這將在控制檯輸出以下內容 −
[
{ 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' }
]
更新於： 30-Sep-2020
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