CODEWITHSUNDEEP
javascript
Aust Cse
Aust Cse

Reputation: 29

Why does console.log() output [object Object] in JavaScript?

console.log(({
  title: "The Three Musketeers",
  author: "Alexandre Dumas",
  price: "$49"
}).toString());

It outputs an Object as [object Object], even though I am calling .toString() on it. Can anyone please explain why this happens?

Upvotes: 1

Views: 576

Answers (5)

ledicjp
ledicjp

Reputation: 40

The method you're looking for is JSON.stringify(). Try this:

JSON.stringify({
  title: "The Three Musketeers",
  author: "Alexandre Dumas",
  price: "$49"
}, null, 2);

Upvotes: 0

Mikkel
Mikkel

Reputation: 7777

If you do it this way it will work better

let object = {
  title: "The Three Musketeers",
  author: "Alexandre Dumas",
  price: "$49"
}
console.log("My object",object);

It's because it doesn't know how to render your object

Upvotes: 0

Djaouad
Djaouad

Reputation: 22766

That's what happens when you try to convert or add an object to a string (which also tries to convert it to a string), what you're looking for is JSON.stringify(object) :

console.log(
    JSON.stringify(
        {title : "The Three Musketeers", author: "Alexandre Dumas", price: "$49"}
    )
);

Upvotes: 1

Nick
Nick

Reputation: 16576

If you're looking for a JSON string representation of the object, look into JSON.stringify()

Upvotes: 0

Obsidian Age
Obsidian Age

Reputation: 42304

Because for have built a JavaScript object that you are attempt to convert to a string. You are attempting to convert the entire object to a string, which can't (really) be done. As such, you simply get text that says "Hey, we've got an object here".

If however, you were to run .toString() on a property of that object (which is probably your intent), you would get a string representation of that property. This can be done by accessing the proeprty with the dot notation just before calling .toString(), as follows:

console.log(({
  title: "The Three Musketeers",
  author: "Alexandre Dumas",
  price: "$49"
}).title.toString());

Upvotes: 1

Related Questions