JS arranges objects in alphabetical order by attribute name

var obj = {name: "Zhangsan", Age:8, Ace:5, NBME: "Lisi"};//the object to sort
function Objkeysort (obj) {//Sort
    var newkey = Object.keys (obj). sort ();
Use the Keys method of the object's built-in class to get the property names of the objects to sort, and then use the Sort method on the array prototype to sort the obtained property names, Newkey is an array
    var newObj = {};//Creates a new object for storing sorted key-value pairs
    for (var i = 0; i < newkey.length; i++) {//Traversal Newkey array
        Newobj[newkey[i]] = obj[newkey[i]];//adds the key-value pairs in sorted order to the newly created object
    }
    Return newobj;//returns the new ordered object
}

Objkeysort (obj); function execution
Object {ace:5, age:8, Name: "Zhangsan", Nbme: "Lisi"};//execution result

If you want to arrange in reverse order, simply invert each item in the Newkey array, that is, var newkey = Object.keys (obj). Sort (). reverse ();

Objkeysort (obj); function execution
Object {nbme: "Lisi", Name: "Zhangsan", Age:8, ace:5};//execution result

JS arranges objects in alphabetical order by attribute name