Use Object.keys() to Check Empty Objects

Problem

Checking if an object is empty requires iterating through its properties manually.

Solution

Use Object.keys(obj).length === 0 to quickly check if an object has no properties.

Benefit

One-line solution that is faster and more reliable than manual iteration.

Code Example

// Check if object is empty
const isEmpty = Object.keys(myObj).length === 0;

// Get all object keys
const keys = Object.keys(user); // ['name', 'age', 'email']