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[英]sort whole object with specific (key->value) in JavaScript alphabetically?
[英]Sort Javascript object by value alphabetically
我有一個 JS object 如下:
var obj = {"00:11:22:33:44:55" : "AddressB", "66:77:88:99:AA:BB" : "AddressA", "55:44:33:22:11:00" : "AddressC", "AA:BB:CC:DD:EE:FF" : "AddressD"};
以下代碼通過鍵按字母順序對其進行排序:
sorted = Object.keys(obj)
.sort()
.reduce(function (accSort, keySort)
{
accSort[keySort] = obj[keySort];
return accSort;
}, {});
console.log(sorted);
產生output:
{"00:11:22:33:44:55": "地址 B", "55:44:33:22:11:00": "地址 C", "66:77:88:99:AA:BB" :“地址A”,“AA:BB:CC:DD:EE:FF”:“地址D”}
如何按值按字母順序對 object 進行排序,因此 output 是:
{"66:77:88:99:AA:BB": "地址 A", "00:11:22:33:44:55": "地址 B", "55:44:33:22:11:00" :“地址C”,“AA:BB:CC:DD:EE:FF”:“地址D”}
您需要先keys
的values
對鍵進行排序,然后使用.reduce
創建生成的有序 object:
const obj = { "00:11:22:33:44:55": "AddressB", "66:77:88:99:AA:BB": "AddressA", "55:44:33:22:11:00": "AddressC", "AA:BB:CC:DD:EE:FF": "AddressD" }; const sorted = Object.keys(obj).sort((a,b) => obj[a].localeCompare(obj[b])).reduce((acc,key) => { acc[key] = obj[key]; return acc; }, {}); console.log(sorted);
使用Object.entries()
獲取鍵和值的二維數組。 按值排序,然后使用reduce()
創建新的 object 。
var obj = {"00:11:22:33:44:55": "AddressB", "66:77:88:99:AA:BB": "AddressA", "55:44:33:22:11:00": "AddressC", "AA:BB:CC:DD:EE:FF": "AddressD"}; sorted = Object.entries(obj).sort(([key1, val1], [key2, val2]) => val1.localeCompare(val2)).reduce(function(accSort, [key, val]) { accSort[key] = val; return accSort; }, {}); console.log(sorted);
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