Working with Cookies

Cookies for JavaScript and Ajax based applications used to be bad news for developers. This part of the online application can drastically slow down the interaction since the temporary data could slowly clog the browser.  With no mechanism that will help in shedding the cookies or expiring them at the proper date, the browser would have to deal with increasing memory. The result is temporary lag or even total crash of the application. Developers have to find a solution on how to shed cookies in a timely manner.

But time has a way of helping developers find the solution. Shedding cookies at the right moment is relatively for developers. Libraries that can work with major browsers in the application have been created so that cookies will be removed at the right moment.

The challenge however, is when a developer takes over the application without concrete knowledge of the application. Sure there could be some ideas based on documentation, but when changes are needed, a separate method has to be done so that the functions and data in the application will be properly used. This is especially true with cookies when developers need to make some update.

Pulling Cookie Document

The most important part of in knowing what to do with cookie is to obtain more information on how the behave and how the affect the application. Even if it is indicated in the documentation, developers can execute a document function to retrieve their needed function. The syntax to retrieve the function is written in this method:

name = value
expires = date
path = directory
domain = domainName

These parameters are enclosed by quotation marks and separated by semi-colon. The parameters end by “secure” to protect the data from being extracted by an unknown or third party application.

The name and the value that should be indicated in the cookie is naturally the expected name of the function where the cookies should be expected. This is the first step in knowing which function should be detected. This part of the document function even provides the convenience of mobility which means developers can execute the document function anywhere.

Expires and date, on the other hand, specifies the current state of the cookie. This will show when the function will expire. This usually requires additional function coming from toGMTString as this will indicate the exact time and date of expiration. The string, however, is simply an option as the cookie will still expire as soon as the browser is closed.

The path and domain functions are security measures for developers. These are specific parts of the webpage that will remain tangible for the application. Shielding or keeping some functions hidden is important so that users will not be confused with additional forms or data displayed in the application.

The best part of this document function for cookies is that it’s not only developed to provide information on existing cookies. The function can also be used to set the individual cookie depending on developer’s preferences.