Skip to content
Related Articles
Get the best out of our app
GFG App
Open App
geeksforgeeks
Browser
Continue

Related Articles

JavaScript Boolean Reference

Improve Article
Save Article
Like Article
Improve Article
Save Article
Like Article

JavaScript Boolean is a datatype that returns either true or false In JavaScript, a boolean is used as a function to get the value of a variable, object, conditions, expressions, etc in terms of true or false

Syntax:

Boolean(variable/expression) 
 

Example: If the operands are equal, the equal to operator == returns true

Javascript




<script>
    console.log(15 == 15)
    console.log(15 == 11)
</script>


Output:

true
false

The complete list of JavaScript Boolean has listed below:

JavaScript Boolean Constructor: A constructor gets called when an object is created using the new keyword.

Constructor Descriptions Examples
Boolean() Create Boolean objects or return primitive values of type boolean.
Try

JavaScript Boolean Properties: A JavaScript property is a member of an object that associates a key with a value.

  • Instance Property: An instance property is a property that has a new copy for every new instance of the class.

Instance Properties Descriptions Examples
constructor Add a new property and methods to all Boolean instances.
Try

JavaScript Boolean Methods: Methods are actions that can be performed on objects.

  • Instance Method: If the method is called on an instance of a boolean then it is called an instance method.

Instance Methods Descriptions Examples
valueOf() Returns the value of boolean object.
Try

toString() Returns a string according to the Boolean value.
Try

My Personal Notes arrow_drop_up
Last Updated : 23 May, 2023
Like Article
Save Article
Similar Reads
Related Tutorials