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Through this simple JavaScript tutorial, you would learn about Public and Private methods in the JavaScript OOP.

Label: OOP, Public, Private, Method

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At Ning, here's how we do public and private methods in JavaScript:

/**
 * A scrollable list that can display large numbers of contacts.
 *
 * @param contacts  contact objects
 */
xp.ContactSelector = function(args) {

    /** Container for public functions. */
    var self = {};

    /** Container for private functions. */
    var _ = {};

    /**
     * Initializes the object.
     */
    _.initialize = function() {
        if (!args.contacts) { 
            _.installSearchbox();
        }
    };

    /**
     * Adds a searchbox to the ContactSelector.
     */
    _.installSearchbox = function() {
        // This is a private method
    };

    /**
     * Returns the contacts that the user has selected
     *
     * @return  the selected contact objects
     */
    self.getSelectedContacts = function() {
        // This is a public method
    };
    
    . . . . . . . . . .
    
    _.initialize();
    return self;
};

Private methods begin with _., while public methods begin with self.. There are some interesting things about this setup:

Public methods are accessible on the object created by this function. Private methods are not accessible.
Public and private methods can be defined in any order, regardless of which calls which. This is because they are properties of self and _. If they were defined as standalone functions, then order would matter.
You can inherit from another object by adding the following to initialize(): self = xp.AbstractContactSelector(args);

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26/04/2010
Jonathan Aquino [more]
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OOP JavaScript: Public and Private Methods - JID: 2343 - Language: English

0/5 0 votes / 18,190 previews / 0 comment 26/04/2010 Through this simple JavaScript tutorial, you would learn about Public and Private methods in the JavaScript OOP....OOP JavaScript: Public and Private Methods - JID: 2343 - OOP JavaScript: Public and Private Methods - Language: English

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