JavaScript Object toString()

❮ Previous JavaScript Object Reference Next ❯

Examples

Using toString() on an array:

const fruits = ["Banana", "Orange", "Apple", "Mango"];
let text = fruits.toString();

Using toString() on an object:

const person = {
  firstName: "John",
  lastName: "Doe",
  age: 50,
  eyeColor: "blue"
};
const keys = person.toString();

Try it Yourself »

Using Object.toString() on an object:

const person = {
  firstName: "John",
  lastName: "Doe",
  age: 50,
  eyeColor: "blue"
};
const keys = Object.toString(person);

Try it Yourself »

Description

The toString() method returns an object as a string.

The toString() method returns "[object Object]" if it cannot return a string.

Object.toString() always returns the object constructor.

The toString() method does not change the original object.

Note

Every JavaScript object has a toString() method.

The toString() method is used internally by JavaScript when an object needs to be displayed as a text (like in HTML), or when an object needs to be used as a string.

Normally, you will not use it in your own code.

Browser Support

toString() is an ECMAScript1 (ES1) feature.

ES1 (JavaScript 1997) is fully supported in all browsers:


Chrome	Edge	Firefox	Safari	Opera	IE
Yes	Yes	Yes	Yes	Yes	Yes

Syntax

object.toString()

Parameters

NONE

Return Value

A string representing the object.

Or "[object type]" if it cannot return a string.

JavaScript Objects

JavaScript Object Definition

JavaScript Object Methods

JavaScript Object Properties