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Revision: 65851
at January 29, 2014 21:20 by apphp-snippets
Initial Code 
<script language="javascript">
FormValidator = function(){
 
    // private data member (property)
    var _digits = "0123456789";
 
    // public data member (property)
    this.digits = "0123456789";
    
    // private data function (method)
    var _isEmpty = function(s){ return((s==null)||(s.length==0))};    
 
    // publick data function (method)
    this.isEmpty = function(s){ return((s==null)||(s.length==0))};        
}
 
/* create a new instance of Validator object */ 
var jsFormValidator = new FormValidator();
 
/* wrong access, errors will be produced */
alert(jsFormValidator._digits);
alert(jsFormValidator._isEmpty());
 
/* valid access */
alert(jsFormValidator.digits);
alert(jsFormValidator.isEmpty());
</script>
Initial URL 
http://www.apphp.com/index.php?snippet=javascript-define-class-private-memebrs
Initial Description 
Class member encapsulation in JavaScript is very important thing and may be implemented with easy. To define private property or method just use var before the definition or this., if you need to give a public access to property or method.
Initial Title 
How To Define Class Private Members in JavaScript
Initial Tags 
javascript, class
Initial Language 
JavaScript