Conditional Preloading Better Ajax ...

Conditional preloading is a smart way of providing information to the user. Searching for information could be hastened when conditional preloading is activated since information is gradually made available for the user as the users key-in the data they are looking for.

In order to pull this off, developers has to work with different web languages. Building an Ajax based application is a little bit challenging and conditional preloading is definitely one of those functions that could really confuse developers in no time. When properly coded, conditional preloading will ensure that the users experienced will be enhanced. On the other hand, poorly coded conditional preloading will only diminish the functions of the application.

Conditional preloading works with JavaScript, CSS, PHP, Images and other web languages. Everything will be on play during the conditional preloading and their functions will be fully realized when the application has been successfully rendered. As we have already indicated, combining these web languages is definitely a challenge for developers but the trick actually is to compress the functions. This will enable the languages to work hand in hand without compromising the function. Some will say that compressing web languages will diminish the function of the application. But this is not the case in conditional preloading. Although preloading requires a good number of web languages, it does nOt require a lot of coding to ensure for that this function to work properly.

Aside from the web languages in conditional preloading, the location of the function should also be considered. Developers have to ensure that the application has the power to support conditional preloading. Ideally, this function has to be placed at the start of the application since it is usually used for search engines of the online application. But there are other online applications that requires conditional preloading to be at the middle of the application. To ensure that the conditional preloading will work even though the rest of the functions are already loaded, developers have to use “search caching”. Think of it as an interactive CSS – with the help of JavaScript the information is loaded as the user encodes the information needed. CSS on the other hand will stream the information. This function will eventually be wrapped with the web language used by the developer such as HTML or PHP.

The challenge for developers is to ensure that conditional preloading works successfully even though bandwidth is already exhausted in other functions. To solve this problem, developers have to separate the online application to the conditional preloading in terms of caching. For the online application, developers could point the cached data to the user while the conditional preloading will be loaded from the server. When the data is cached in the server, there is more space and the data could be asynchronously streamed from the server. More often than not, server caching will ensure that the online application will work as planned.

source: ajaxwith

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