Home > Article > Web Front-end > JavaScript method valueOf() returns the original value of a Boolean object
Definition and Usage
The valueOf() method returns the original value of a Boolean object.
Syntax
booleanObject.valueOf()
Return value
The original boolean value of booleanObject.
Throws
If the object calling this method is not a Boolean, a TypeError exception is thrown.
Example
In this example, we will create a Boolean object and use valueOf() to get the original value of this object:
<script type="text/javascript"> var boo = new Boolean(false) document.write(boo.valueOf()) </script>
Output:
false
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