What is the method to check if a JavaScript object is empty

Question

With the help of proper code, can you tell me What the method is to check if a JavaScript object is empty?

Answer 1

You can use several methods:

1. Using Object.keys()

const isEmpty = (obj) => {

  return Object.keys(obj).length === 0 && obj.constructor === Object;

};

2. Using a for...in Loop

const isEmpty = (obj) => {

  for (let prop in obj) {

    if (obj.hasOwnProperty(prop)) {

      return false;

    }

  }

  return true;

};

3.Using JSON.stringify()

const isEmpty = (obj) => {

  return JSON.stringify(obj) === '{}';

};