Events and Listeners

A successful Ajax or JavaScript based application is largely based on the coding ability of the developer. When the code is properly implemented, there is a big chance that the function will work without any concern. Conversely, applications will not work as expected when the coding used is not according to the standard.

Even though JavaScript engines in most browsers can easily read a variety of codes, there are still limitations on interpretation. Many developers opted to use frameworks and libraries since manual coding only increases the possibility of a non-responsive application.

But there is always a possibility that a developer will have to manually code a function. This is especially true when the function needed is not found in various libraries and frameworks. Two popular functions will usually end up being manually coded:

events () 
listeners ().

These two functions are quite special in an Ajax or JavaScript based application because of its ability to work with the client and the server side. These two functions will help developers call the right data and properly implement them in the browser.

Optimizing Events ()

In gist, events is a special function for Ajax and JavaScript dedicated in alerting the browser and the server of the upcoming version. When an event is triggered, the application and the server prepare for a function that will affect the client and the server side.
From this standpoint, you will be able to detect how the events function can be optimized. Optimization of the events function can happen when the function is used in data extraction.

When information is needed in the client side, events will work at an optimal level as it works with both sides. Events can still be used as a tag for external sources but it will not be able to work effectively since it will not be able to implement some changes on the external source.

Optimizing Listeners

The listener function is one of the most powerful functions in an Ajax based application. A listener in Ajax is basically a function dedicated to alerting the server side when changes happen in the client side. The changes in the client side will can possibly work without the server side since JavaScript and Ajax functions are already loaded in the client side.

Optimizing listeners in an Ajax or JavaScript based application is relatively easy. To ensure that your listener will work well in any condition, it's always better to attach the listener in a specific function. Instead of pushing a single listener to various functions, it would be better for the listener if it is implemented in one function. This technique will help ease the load of listener. The server will be able to detect the changes effectively.

Events and listeners are two simple but very powerful functions in an Ajax or JavaScript based application. Because of their importance, optimization is a must so that the application will work effectively. Although these techniques might require additional time and coding, these techniques assures improved performance of the online application.