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Introduction to the use of valueOf() method in JavaScript_Basic knowledge

WBOY
WBOYOriginal
2016-05-16 15:56:231871browse

JavaScript’s Boolean.valueOf() method returns the original value of the specified Boolean object.
Grammar

boolean.valueOf()

Here are the details of the parameters:

  • NA

Return value:

Returns the original value of the specified Boolean object.
Example: 

<html>
<head>
<title>JavaScript valueOf() Method</title>
</head>
<body>
<script type="text/javascript">
var flag = new Boolean(false); 
document.write( "flag.valueOf is : " + flag.valueOf() ); 
</script>
</body>
</html>

This will produce the following results: 

flag.valueOf is : false

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