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  4. Unbind the action to the event handler


Hello World Window






Ext.onReady(function() {
    var myComponent = new Ext.util.Observable();
    myComponent.addEvents('myEventName');
    
    
    var handlerFn = function(firstName, lastName) {
        alert(firstName + ' ' + lastName);
    }    
    myComponent.on('myEventName',handlerFn);
    myComponent.fireEvent('myEventName','asdf','adsf');
    
    
    myComponent.un('myEventName', handlerFn);
});
 
asdf