Sort a dictionary by value in JavaScript

Question

Here is my dictionary:

const dict = {
  \"x\" : 1,
  \"y\" : 6,
  \"z\" : 9,
  \"a\" : 5,
  \"b\" : 7,
  \"c\" : 11,
  \"d\" : 17,
  \"t\" : 3
};
         


        

Answer 1

The answer provided by @thefourtheye works to an extent, but it does not return the same "dictionary" structure.

If you want to return a sorted object with the same structure you started with, you can run this on the items returned from the accepted answer:

sorted_obj={}
$.each(items, function(k, v) {
    use_key = v[0]
    use_value = v[1]
    sorted_obj[use_key] = use_value
})

Combine them for a single function that sorts a JavaScript object:

function sort_object(obj) {
    items = Object.keys(obj).map(function(key) {
        return [key, obj[key]];
    });
    items.sort(function(first, second) {
        return second[1] - first[1];
    });
    sorted_obj={}
    $.each(items, function(k, v) {
        use_key = v[0]
        use_value = v[1]
        sorted_obj[use_key] = use_value
    })
    return(sorted_obj)
} 

Example:

Simply pass your object into the sort_object function:

dict = {
  "x" : 1,
  "y" : 6,
  "z" : 9,
  "a" : 5,
  "b" : 7,
  "c" : 11,
  "d" : 17,
  "t" : 3
};

sort_object(dict)

Result:

{
"d":17,
"c":11,
"z":9,
"b":7,
"y":6,
"a":5,
"t":3,
"x":1
}

"Proof":

res = sort_object(dict)

$.each(res, function(elem, index) {
    alert(elem)
})