How to Check if an Object is Empty in JavaScript: Vanilla JS & Lodash

Disclaimer/Disclosure: Some of the content was synthetically produced using various Generative AI (artificial intelligence) tools; so, there may be inaccuracies or misleading information present in the video. Please consider this before relying on the content to make any decisions or take any actions etc. If you still have any concerns, please feel free to write them in a comment. Thank you.
---

Summary: Learn different methods to check if an object is empty in JavaScript using vanilla JS and Lodash. Understand how to handle null or undefined objects efficiently.
---

In JavaScript development, it's often necessary to determine if an object is empty. An object is considered empty if it has no enumerable properties. Here's how you can accomplish this using various methods, including vanilla JavaScript and Lodash.

Checking Object Emptiness Using Vanilla JavaScript

Vanilla JavaScript (plain JavaScript) provides multiple ways to check if an object is empty. Here are some common methods:

[[See Video to Reveal this Text or Code Snippet]]

Using for...in Loop

A for...in loop iterates over all enumerable properties of an object. If an iteration starts, the object is not empty:

[[See Video to Reveal this Text or Code Snippet]]

Handling Null or Undefined Objects

In some cases, you might need to check if an object is empty or null/undefined. Here's how you can extend your function to handle these cases:

[[See Video to Reveal this Text or Code Snippet]]

Checking Object Emptiness Using Lodash

Lodash is a popular utility library that offers a variety of functions, including one for checking if an object is empty. The _.isEmpty() method simplifies this process:

[[See Video to Reveal this Text or Code Snippet]]

The _.isEmpty method not only works with objects but can also check if arrays, strings, or other collections are empty.

Conclusion

By using these techniques, you can efficiently manage and validate data structures in your JavaScript applications.