My Plugin dont overwrite the default values

I try to realise my first jquery plugin (Im a noob).

(function($){

    $.test = function开发者_运维技巧(selector, settings){

        // settings

        var config = {
            'text': "test"
        };

        if ( settings ){$.extend(config, settings);}

        // variables

        var i = 0;
        alert(config.text);
    };

})(jQuery);

Calling

$.test("juhu");

The script should alert "Juhu" not the default value "test".

What is the fault?

Could somebody help me please?

Try to extend this way:

if (settings) { config = $.extend( {}, config, settings ); }

Then access the value with config.text

You'll need to assign the return value of $.extend. Try something like

function(selector, settings){
    var config = {
        'text': "test"
    };

    config = $.extend(config, settings || {});
}

you are calling

$.test("juhu");

but your function takes two parameters

$.test = function(selector, settings)

so "juhu" becomes the selector, settings is undefined which means if (settings) fails and the default "test" string is alerted.