increase object value on javascript?

Question

I want to increase object value just like loop i++ , but in object didnt worked , how to increase this value ? any methods?

const object = {
price:30
}

console.log(object.price++);

Answer 1

using ++ like that is the post-increment operator meaning object.price++ returns object.price first then increments. You want the pre-increment operator ++object.price.

const object = {
  price:30
}

console.log(++object.price);