How can I iterate through the properties of a JavaScript object

Question

Can you tell me How I can iterate through the properties of a JavaScript object?

Answer 1

You can iterate through the properties of a JavaScript object using the following methods:

1. Using Object.keys():

Retrieves an array of keys, which can be iterated using forEach or loops.

Example:

const person = { name: 'Ram', age: 26, city: 'Pune' };

Object.keys(person).forEach(key => {

  console.log(`${key}: ${person[key]}`);

});

Output:

name: Ram

age: 26

city: Pune

2. Using Object.entries() (Key-Value Pairs):

Returns an array of key-value pairs, which is useful for direct iteration.

Example:

const person = { name: 'Priya', age: 22, city: 'Delhi' };

Object.entries(person).forEach(([key, value]) => {

  console.log(`${key}: ${value}`);

});

Output:

name: Priya

age: 22

city: Delhi