JavaScript - Objek Boolean

Itu Booleanobjek mewakili dua nilai, baik "benar" atau "salah". Jika parameter nilai dihilangkan atau 0, -0, null, false,NaN, undefined, atau string kosong (""), objek memiliki nilai awal false.

Sintaksis

Gunakan sintaks berikut untuk membuat file boolean obyek.

var val = new Boolean(value);

Properti Boolean

Berikut adalah daftar properti dari objek Boolean -

Sr.No. Deskripsi properti
1 constructor

Returns a reference to the Boolean function that created the object.

2 prototype

The prototype property allows you to add properties and methods to an object.

In the following sections, we will have a few examples to illustrate the properties of Boolean object.

Boolean Methods

Here is a list of the methods of Boolean object and their description.

Sr.No. Method & Description
1 toSource()

Returns a string containing the source of the Boolean object; you can use this string to create an equivalent object.

2 toString()

Returns a string of either "true" or "false" depending upon the value of the object.

3 valueOf()

Returns the primitive value of the Boolean object.

In the following sections, we will have a few examples to demonstrate the usage of the Boolean methods.