Is there a way to sort/order keys in JavaScript objects?

Question

For example the following

var data = {
    \'States\': [\'NSW\', \'VIC\'],
    \'Countries\': [\'GBR\', \'AUS\'],
    \'Capitals\': [\'SYD\', \'MEL\']
}
for          


        

Answer 1

here's a nice functional solution:

basically,

1. extract the keys into a list with Object.keys
2. sort the keys
3. reduce list back down to an object to get desired result

ES5 Solution:

not_sorted = {b: false, a: true};

sorted = Object.keys(not_sorted)
    .sort()
    .reduce(function (acc, key) { 
        acc[key] = not_sorted[key];
        return acc;
    }, {});

console.log(sorted) //{a: true, b: false}

ES6 Solution:

not_sorted = {b: false, a: true}

sorted = Object.keys(not_sorted)
    .sort()
    .reduce((acc, key) => ({
        ...acc, [key]: not_sorted[key]
    }), {})

console.log(sorted) //{a: true, b: false}