Javascript - Boolean class reference

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Introduction

JavaScript booleans can have one of two values: true or false.

The Boolean() Function

You can use the Boolean() function to find out if an expression is true:

Demo

//Display the value of Boolean(10 > 9)
console.log( Boolean(10 > 9) );
console.log( 10 > 9 );

Result

Boolean Properties

PropertyDescription
constructor Returns the function that created JavaScript's Boolean prototype
prototype Allows you to add properties and methods to the Boolean prototype

Boolean Methods

Method Description
toString() Converts a boolean value to a string, and returns the result
valueOf() Returns the primitive value of a boolean

Demo

console.log(new Boolean(true).toString());
console.log(new Boolean(true).valueOf());

Result