Bugl — Daily coding puzzles and drills

The JavaScript toString()

method converts a variable (or a value) to a string.

Formula

It is a built - in method for many data types, including numbers, arrays, dates, and objects.

The method is useful for:

Converting data to a readable format for display Ensuring type compatibility when a string is required

Customizing objects other user interfaces

Customizing objects for debugging

JavaScript Array toString()

When used on an array, toString() returns the array elements as a comma separated string.

Example

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

JavaScript Date toString()

Formula

When used on a date, toString() returns a human - readable date and time string.

Example

Convert a date object to a string:

const d = new Date();
let text = d.toString();

JavaScript Number toString()

When used on a number, toString() returns the number as a string.

Example

let x = 123;
let text = x.toString();
Convert a number to a string, using base 2 (binary):

Example

let x = 123;
let text = x.toString(2);

JavaScript Function toString()

When used on a function, toString() returns the source code of the function as a string.

JavaScript Object toString()

When used on an object, toString() an object returns "[object Object]". To provide a meaningful string representation, it can be overridden in the object definition:

Example

let person = {
firstname: "John", lastname: "Doe",
}
let text = person.toString();