JavaScript - The Boolean Object
The Boolean object represents two values, either "true" or "false". If value parameter is omitted or is 0, -0, null, false, NaN, undefined, or the empty string (""), the object has an initial value of false.
Syntax
Use the following syntax to create a boolean object.
var val = new Boolean(value);
Boolean Properties
Here is a list of the properties of Boolean object −
| Sr.No. | Property & Description |
|---|---|
| 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.
