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

WBOY
WBOYOriginal
2016-05-16 15:56:231476browse

The JavaScript Boolean.constructor() method returns a reference to the prototype Boolean function that created the instance.
Grammar

boolean.constructor()

Return value:

  • NA

Here are the details of the parameters:

Returns the instance that created this object.
Example: 

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

This will produce the following results: 

bool.constructor() is : function Boolean() { [native code] }


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