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How to create JQuery Class Private Variable
in Using jQuery
•
9 years ago
Hi all,
I am not a JQuery expert so I am very confused about creating private variable for an object instance.
I want to create a simple jquery plugin, but all instances see the last declared class variables.
Can someone tell me the reason and the solution ? 
Sample code :
;( function ( $ ) {
/* This is a private declaration, isn't it ? */
var settings = {
pagesize: 10
}
pagesize: 10
}
/* Constructor */
$.fn.myPlugin = function (options) {
/* Call a private method to save the options */
setVars( options );
}
/* Private method to save the options to a PRIVATE variable */
function setVars(options) {
settings = $.extend( {}, options);
}
settings = $.extend( {}, options);
}
/* Alert the page size related to the CURRENT instance */
$.fn.myPlugin.refresh = function () {
alert( settings.pagesize );
}
alert( settings.pagesize );
}
} ) ( jQuery );
Calling the plugin :
("#div1").myPlugin( {
pagesize : 11
} );
pagesize : 11
} );
$("#div2").myPlugin( {
pagesize : 45
} );
pagesize : 45
} );
$("#div1").myPlugin.refresh();
$("#div2").myPlugin.refresh();
I think the result should be to alert 11 and 45 but only 45 is alerted two times. But why ?
Thank you in advance
Tihi
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