如何在JavaScript

Question

排序鍵的對象，我有以下對象：

Object { WK23: 12.52573059875292, WK22: 122.2625975869411, WK21: 
78.48714311048059, WK20: 87.14214810403018, WK26: 78.52625051674245, WK25: 77.64480983891451, WK24: 67.42158281711342, WK2: 
78.420343898902, WK3: 77.91344340707354, WK4: 77.29048185059888 } 

是否有可能通過按鍵對它進行排序，從WK1到WK100？ 如何在JavaScript中做到這一點？

在此先感謝，

Answer 1

試試這個，你可以更改訂單，並分配給不同的對象

var unordered={ WK23: 12.52573059875292, WK22: 122.2625975869411, WK21: 78.48714311048059, WK20: 87.14214810403018, WK26: 78.52625051674245, WK25: 77.64480983891451, WK24: 67.42158281711342, WK2: 78.420343898902, WK3: 77.91344340707354, WK4: 77.29048185059888 } 
 

 
console.log(JSON.stringify(unordered)); 
 

 

 
const ordered = {}; 
 
Object.keys(unordered).sort(function(a,b){ 
 
var a=a.split("WK")[1]; 
 
var b=b.split("WK")[1]; 
 
return a-b 
 
}).forEach(function(key) { 
 
    ordered[key] = unordered[key]; 
 
}); 
 

 
console.log(JSON.stringify(ordered));

Answer 2

不，你不能。對象鍵不是有序的。如果你想排序對象中的條目，你將不得不將它轉換成一個數組。

var obj = {"WK23": 12.52573059875292, "WK22": 122.2625975869411}; 
var result = Object.keys(obj).map(function(key) { 
    return [key, obj[key]]; 
}); 

// the result Array can then be sorted... 
// result = [["WK23": 12.52573059875292], ["WK22": 122.2625975869411]] 

var sorted = result.sort(function(a,b){ 
    var num_a = parseInt(a[0].replace("WK", "")); 
    var num_b = parseInt(b[0].replace("WK", "")); 
    return num_a > num_b; 
}); 
// sorted = [["WK22": 122.2625975869411], ["WK23": 12.52573059875292]] 

Answer 3

在這裏你去

const sample = { WK23: 12.52573059875292, WK22: 122.2625975869411, WK21: 
78.48714311048059, WK20: 87.14214810403018, WK26: 78.52625051674245, WK25: 77.64480983891451, WK24: 67.42158281711342, WK2: 
78.420343898902, WK3: 77.91344340707354, WK4: 77.29048185059888 }; 

const sorted = Object.keys(sample).sort().map(key => sample[key]);