javascript - Javascript 中的自定义排序数组

Question

这个问题已经有答案了:

Sorting an array of objects by property values (34 个回答)

Sort an array of object by a property (with custom order, not alphabetically) (7 个回答)

已关闭 5 年前。

假设我有以下数组:

[
    {
       "key":"Certified?",
       "value":"Yes"
    },
    {
       "key":"Language",
       "value":"EN"
    },
    {
       "key":"Training-Place",
       "value":"City"
    }
 ]

我想按照Language的特定顺序对其进行排序, Certified? , Training-Place ，我怎样才能实现这一目标？最好我能够定义排序:

["Language", "Certified?", "Training-Place"]

非常感谢，非常感谢您的帮助。

Answer 1

您可以简单地使用Arrays.sort()并使用顺序数组按照顺序数组指定的顺序对数组进行排序。

尝试以下操作:

var arr = [ { "key":"Certified?", "value":"Yes" }, { "key":"Language", "value":"EN" }, { "key":"Training-Place", "value":"City" }, { "key":"Training-Place", "value":"aaa" }, { "key":"Language", "value":"bbb" }];

var order = ["Language", "Certified?", "Training-Place"];
 
 arr.sort((a,b)=> order.indexOf(a.key) - order.indexOf(b.key));
 
 console.log(arr);