使用规范按数字顺序对 JSON 条目进行排序

Question

我有一个JSON，我可以成功地对数字进行排序。

data["example"].sort(function (a, b) {
return a["one"] - b["two"];
});
// Output:
0: {location: "0"}
1: {location: "0"}
2: {location: "0"}
3: {location: "0"}
4: {location: "0"}
5: {location: "0"}
6: {location: "0"}
7: {location: "0"}
8: {location: "1"}
9: {location: "2"}
10: {location: "3"}
11: {location: "4"}
12: {location: "5"}
13: {location: "6"}
14: {location: "7"}

但是，我希望它从1到∞开始排序，然后附加所有0。

喜欢这个：

0: {location: "1"}
1: {location: "2"}
2: {location: "3"}
3: {location: "4"}
4: {location: "5"}
5: {location: "6"}
6: {location: "7"}
7: {location: "0"}
8: {location: "0"}
9: {location: "0"}
10: {location: "0"}
11: {location: "0"}
12: {location: "0"}
13: {location: "0"}
14: {location: "0"}

我敢肯定，有一个简单的解决方案，但我找不到关于这种特定数字排序的任何信息。

Answer 1

您可以检查location是否为 0，如果是，请使用Infinity进行排序以确保所有位置都将放置在数组的末尾。

let arr = [{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"1"},{"location":"2"},{"location":"3"},{"location":"4"},{"location":"5"},{"location":"6"},{"location":"7"}];
arr.sort(function(a, b) {
return (a.location === "0" ? Infinity : a.location) - (b.location === "0" ? Infinity : b.location);
});
console.log(arr);
// Output:
// [{"location":"1"},{"location":"2"},{"location":"3"},{"location":"4"},{"location":"5"},{"location":"6"},{"location":"7"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"},{"location":"0"}];

Answer 2

在获取输出运行后

for (let i = 0; i < array.length; i++) {
array[i].location = i+1;
}

或使用类似地图

let counter = 1;
data["example"].sort(function (a, b) {
return a["one"] - b["two"];
}).map(c=> {c.location = counter++;return c});