Sort Javascript Object by Key

Sort JavaScript object by key

When working with JavaScript objects, you may come across situations where you need to sort the object by its keys. Sorting an object by key can be useful in scenarios where you want to display the object’s properties in a specific order or perform operations based on the sorted keys.

In this blog post, we will explore two different solutions to sort a JavaScript object by its keys.

Solution 1: Using Object.entries() and Array.sort()

The first solution involves using the Object.entries() method to convert the object into an array of key-value pairs. We can then use the Array.sort() method to sort the array based on the keys. Finally, we can convert the sorted array back into an object using the Object.fromEntries() method.

Here’s an example:

const obj = {
  c: 3,
  a: 1,
  b: 2
};

const sortedObj = Object.fromEntries(
  Object.entries(obj).sort((a, b) => a[0].localeCompare(b[0]))
);

console.log(sortedObj);

The output of the above code will be:

{
  a: 1,
  b: 2,
  c: 3
}

Solution 2: Using Object.keys() and Array.sort()

The second solution involves using the Object.keys() method to extract the keys of the object into an array. We can then use the Array.sort() method to sort the array of keys. Finally, we can create a new object by iterating over the sorted keys and assigning the corresponding values from the original object.

Here’s an example:

const obj = {
  c: 3,
  a: 1,
  b: 2
};

const sortedObj = {};

Object.keys(obj)
  .sort((a, b) => a.localeCompare(b))
  .forEach(key => {
    sortedObj[key] = obj[key];
  });

console.log(sortedObj);

The output of the above code will be the same as the previous solution:

{
  a: 1,
  b: 2,
  c: 3
}

These are two different approaches to sort a JavaScript object by its keys. Choose the one that best suits your requirements and implement it in your code.

That’s it for this blog post! We hope you found it helpful in sorting JavaScript objects by key. If you have any questions or suggestions, feel free to leave a comment below.

Happy coding!