Question

我有一个带有键值对的数组，数组列是id和name。我想按ID对这个数组排序。

id列的值是字符串类型，但我想将它们排序为数字值。

var items = [
{
    "id": "165",
    "name": "a"
},
{
    "id": "236",
    "name": "c"
},
{
    "id": "376",
    "name": "b"
},
{
    "id": "253",
    "name": "f"
},
{
    "id": "235",
    "name": "e"
},
{
    "id": "24",
    "name": "d"
},
{
    "id": "26",
    "name": "d"
}
]

Answer 1

items.sort((a,b)=>a.id-b.id)

Answer 2

使用Arrays.sort()

var arr = [{"id":"165","name":"a"},{"id":"236","name":"c"},{"id":"376","name":"b"},{"id":"253","name":"f"},{"id":"235","name":"e"},{"id":"24","name":"d"},{"id":"26","name":"d"}];
arr.sort((a,b)=> Number(a.id) - Number(b.id));
console.log(arr);

Answer 3

for (int[] arr : allNumList) {
    for (int i : arr) {
        if (i == numb) {
            return false;
        }
    }
}

Answer 4

 <button type="button" id="editArticleButton" class="btn btn-info btn-block" data-toggle="modal" data-target="#modalEditArticle"><span class="glyphicon glyphicon-edit"></span> Edit </button>

Answer 5

可以通过多种方式比较数字字符串。假设字符串为a和b，

a-b
parseInt(a) - parseInt(b)-参考-Java Script parseInt
+a - +b-参考-Unary + operator to convert string to number
Number(a) - Number(b)-参考-Javascript Global Number Object

var items = [{"id": "165","name": "a"},{"id": "236","name": "c"},{"id": "376","name": "b"},{"id": "253","name": "f"},{"id": "235","name": "e"},{"id": "24","name": "d"},{"id": "26","name": "d"}];

console.log(items.sort(function(a,b){ return parseInt(a.id)-parseInt(b.id) }));
console.log(items.sort(function(a,b){ return a.id-b.id }));
console.log(items.sort(function(a,b){ return +a.id - +b.id }));
console.log(items.sort(function(a,b){ return Number(a.id)-Number(b.id) }));

根据指定为String的数字键对对象数组进行排序

5 个答案: