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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